Industrial & Scientific From Swaytail on Amazon

【Easy to Use】: Only 3 steps: 1) Place the opener on the bottle; 2) Push down the opener along with bottle; 3) Loose the opener, and pop the cap off from the bottle;

【Small and Potable】: This bottle opener is very small, portable and convenient. It is very suitable for camping trip, traveling, party or outdoor in summer to drink beer. This bottle opener also can be used as wine bartender tool as bar or restaurant.

【What You Get】：You will get 10pcs alligator clips electrical with 5 colors test leads. The total length is about 49cm/19.29inch, and the alligator clips terminal is 35mm/1.38inch, not 28mm/1.1inch, or 24mm/0.94inch. The jumper wires with alligator clips can be used temporarily for circuit connection, multimeter for current or voltage, power probes, electrical testing experiments, and similar to the Crocodile month, and thus named as Crocodile Clip (electronic spring clip).

【Long Durable】：The test leads with alligator clips are made of high-quality PVC material. So, the alligator clips electrical has good quality and good contact, and the working life will be much longer. The insulated crocodile cable would protect the aligator clips and the copper wires, and the 5 power probes have the good good conductivity. Moreover, the material is much more environmental friendly.

【What You Get】 You will get: 4pcs DC motors, 4pcs strong spring, 1 set metal panel, 4pcs driving wheels, 8pcs bearing wheel, 4pcs detachable track and 1 set screw kit & tool. You can assemble it by the simple manual in the package or from gitnova for the detailed documents and some source code of Arduino by PS2, WiFi, and Bluetooth.

【4WD Shock Absorption Tank Car】The tracked crawler has 4 DC motors with damping system. One can do some obstacle avoidance experiments. The shock absorption car chassis has 4 strong spring. When you get the car, it is unassembled. You can assemble this robot chassis yourself through a simple manual, which is very fun. The track can be changed as any length as shown in photos.

【Wide Applications】：This screw kit can be widely used many fields, like fasten circuit PCB board, smart robot tank car chassis, home furniture, electronic device, computer, and other projects;

【High Quality】：This screw kit is made by stainless steel, which can be meet your many requirements. So, they can be take your many conveniences for your work and life.

【Rapid Hot Melt】：The shrinking tubing cables can be melt rapidly by hotting, and thus can much more tight fit your item to avoid damage. The shrinkage rate is 2:1.

【Environmental Protection Materials】：Good product is from good material. So, we use the new polyolefin material to make this heat shrink tubes. It not only protect our items, but also our environment.

[What You Get]: In this order, you will get 1set unassembled gripper, 1 bag screw, and 1pc MG996R servo; This mechanical robot arm claw is metal including many accessories, so please have patience to install the claw. After that, the claw is very beautiful and solid.

[NOTE]: The claw is UNASSEMBLED for convenience of transport. But we provide the installation manual with this item or visit gitnova to get the documents, or contact us to get the document.

【HD Magnifying Glass】：This magnifying glasses has 50mm/2 Inches Non-scratch quality glass lens, shatterproof design, high definition. By the eye candy magnifier, seniors can read the book and newspapers easily and clearly. Kids can see the tiny structure of insect with this 10X handheld reading magnifier in the science classroom. Engineers can use the reading magnifier to clearly inspect electronic circuits. Restore the beautiful micro-small world, your vision will be clearer at this moment!

【Handheld Magnifying Glasses】：As for this magnifying glass, black and orange color design makes the magnifying lens look light and refreshing. Shatterproof magnifier for reading with non-slip soft handle, making the hand grip anti-skid. 50mm magnifying glass is designed to cover a wider range and provide a better overall reading experience. This is the magnifying glasses for close work.

【Shock Absorption Tank Chassis】: This shock absorbing tank car chassis has 10 pcs bearing wheels, 2pcs driving wheels, in which, 8pcs bearing wheels with 8pcs springs and suspension supporting holders with damping suspension system function. More than 20pcs bearings, to make this tank car chassis runs smoothly with little friction.

【Professional Design】: The metal panel is specially designed for the general control board, like Arduino uno / NodeMCU / Raspberry pie, which makes you assemble the controller board perfectly. Also, reserve many other installation hole locations for servos, sensors, and other electronics board. Specially, this metal panel also can be assembled into the wheel car with 25/37 motor brackets.

【Improve the Hands Ability】: This 4wd robot car chassis is a good helper for DIY makers. The car chassis is NOT assembled, but it is not difficult by the attached simple manual. It is also a great interesting to assemble this robot car chassis, and also be helpful to improve the robotics operation ability, and can know the Mechanical structures on the robot car chassis kit, which includes frame, engine motor.

【Robot Controller Leaning】: Controller is the core of the robot car. After get this chassis and install it, you can know the the robot controllers knowledge, like arduino uno, raspberry pie, microbit, stm32, and many other main control boards. Moreover, you will also know the motor shield board, and other sensors. Thus, it need you spend much time on them.

【What You Get】 You will get: 4pcs DC motors, 4pcs strong spring, 1 set metal panel, 4pcs driving wheels, 8pcs bearing wheel, 4pcs detachable track and 1 set screw kit & tool. You can assemble it by the simple manual in the package or from gitnova for the detailed documents and some source code of Arduino by PS2, WiFi, and Bluetooth.

【4WD Shock Absorption Tank Car】The tracked crawler has 4 DC motors with damping system. One can do some obstacle avoidance experiments. The shock absorption car chassis has 4 strong spring. When you get the car, it is unassembled. You can assemble this robot chassis yourself through a simple manual, which is very fun. The track can be changed as any length as shown in photos.