Specification: Item DIY Potato Powered Digital Clock Material Plastic, Metal parts, electronic components Color As the picture Size Zinc & copper sheet width 1cm, length 5cm Weight 29g Description: Fruit battery experiment description: With zinc & copper & wire & a number of electronic clocks & light-emitting diodes or potatoes, oranges or oranges & other fruits & vegetables, first Kneadthe fruit to make it more relaxed to facilitate the flow of water, insert the two electrodes, & wire & Electronic clock, then it finish Fruit battery power generation principle: Because the fruit contains electrolytes such as citric acid, it inserts two kinds of metal plates with different chemical activities in the fruit, Due to the positive charge, The system needs to be stable so that in the case of a primary battery, the system is stabilized by the electrons from the circuit, in which case the current size is theoretically related directly to the acid concentration Note: The fruit, such as Potato or other fruit, you need to prepare by yourself Package included:1 XDIY Potato Powered Digital Clock ...

Only US$7.59, buy best diy projector science & technology invention h&-made self-made education experiment kit model toy physics kids children gift project sale online store at wholesale price. ...

Description: Product: DIY RC Robot Arm
Materials: Metal Main Board: /16-ways bluetooth Control Servo: Digital Servos KS3527
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Note: Since 10th June, this DIY Robot is the new version. Thank you! It is handmade toys, let the children hands-on assembly, can exercise the childs ability & the ability to observe, to cultivate childrens patience. Description: Name: Solar Quadruped Robot Model: Assemble toys
Material: Environmental PMMA
Size: About 115*105*85mm
Features:1) Using acrylic environmentally friendly materials, safe non-toxic & harmless, children can play with ease.2) Assemble themselves, develop good habits, such as the childs patience.3) Parent-child interaction & deepen the feelings of children & their parents. Package included:1 x Solar Quadruped Robot Manual: Click here


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DIY PVC Power Plug Wire Cable Storage Box Cord Socket Safety Tidy Organizer Desk

Features:- Environmental protection,

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DIY Quartz Wall Clock Movement Mechanism Repair Part Kit With Hands ...

null Specification: Material type: wood Production method: semi-manual semi-mechanical Category: music box
Material: pine
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Description: Basicinformation Brand:WPLItem No.:WPLB-24 Scale:1/16
Colour: Blue & green Power System Motor:180 Servo: 17g
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Description: Product: DIY RC Clamb Robot
Materials: Wood + Electronic Components Battery: 2* AAA Batteries (not included)
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DIY RC LED Strips Green Red Night Light with Remote Controller Module 5V for RC Airplane Fixed Wing Features This led strips can be used for rc airplane, is so bright that the posture of airplane can be identified at night When connect its controller module to rc receiver, the LEDs flash style & ON/OFF can be switched by rc transmitter When unconnect with receiver, the LED can be used individually & can be controller via the button of module 50cm led strips, compatible with most rc airplanes Specification Working Voltage: 5v Working Current: 1A@5VLED Strip Lens: 0.5m Weight: 15g (with controller & led strips) Package Included 1 x LED Controller 1 x Green LED Strip 1 x Red LED Strip DIY RC LED Strips Green Red Night Light with Remote Controller Module 5V for RC Airplane Fixed Wing Features This led strips can be used for rc airplane, is so bright that the posture of airplane can be identified at night When connect its controller module to rc receiver, the LEDs flash style & ON/OFF can be switched by rc transmitter When unconnect with receiver, the LED can be used individually & can be controller via the button of module 50cm led strips, compatible with most rc airplanes Specification Working Voltage: 5v Working Current: 1A@5VLED Strip Lens: 0.5m Weight: 15g (with controller & led strips) Package Included 1 x LED Controller 1 x Green LED Strip 1 x Red LED Strip ...