Youfang Smart is smarter, tech, and healthier We are the sales No.1 in the robot industry, specializing in the development of science and technology, technology, education and teaching enterprises. This programmable robotic arm air bump is a new, very intelligent teaching programmable robotic arm air bump designed by our institute, but also the enlightenment of children and engineers to learn education, we will release more technology, education, health new products from time to time, can be used as children's toy gifts, adult learning programmable board.I believe you will like our robot arm air bump. By the way, if you like our store, Please add our store to your Favorite Stores, You can get our New arrival and Discount information in time. PWM Electronic Switch Robotic Arm Air Pump Valve UNO Controller Vacuum Suction Cup for Arduino Robot DIY Kit Programmable Robot Package Included:(OPTIONAL) Package 1: Vacuum 2 air pump *1 Three-way electronic valve *1 Vacuum telescopic connecting rod + suction cup *2 Silicone trachea 800mm*1 PWN digital electronic switch *2 Packgae 2: Vacuum 2 air pump*1 Three-way electronic valve*1 Vacuum telescopic connecting rod + suction cup*2 Silicone trachea 800 Package 3: Vacuum 2 air pump *1 Three-way electronic valve *1 Vacuum telescopic connecting rod + suction cup *1 Silicone trachea 800mm*1 PWN digital electronic switch *2 Packgae 4: Vacuum 2 air pump*1 Three-way electronic valve*1 Vacuum telescopic connecting rod + suction cup*1 Silicone trachea 800 *1 The most complete development and design, you deserve to own this engineering project, we do technology first, service first, not just sell goods

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