Description:

DIY water dispenser mini invention scientific experiment DIY toy kits.
Environmental protection materials and safe.
Operating principle: 1. The water cup touches the micro switch, the circuit is connected and the pump works,
2. The water cup leaves the micro switch, the circuit disconnects and the pump stops working.
Perfect for kids school Scienc invention projects.

Specification:

Material: Plastic

Water Pipe Color: Random Ship

Size: approx. 18x9x24cm/7.09x3.54x9.45inch.

Size Chart:

3 Fittings Size:
Inner Diameter: 20mm/0.79inch
Thickness: 2.3mm/0.09inch
Outer Diameter: 24.6mm/0.97inch.
Horizontal width: 39.4mm/1.55inch.
Vertical height: 53.2mm/2.09inch.
Elbow fittings
Inner Diameter: 20mm/0.79inch.
Thickness: 2.5mm/0.09inch.
Outer Diameter: 25mm/0.98inch.
Height: 39.5mm/1.56inch.
Connector Pipe: Outer Diameter 2.5mm/0.09inch Thickness: 2mm/0.08inch.

Package Includes:

1 Piece Microswitch

1 Piece Water Pump

1 Piece Battery Case

1 Pack PVC Water Pipe

1 Piece Wooden Board

Note:

You need to buy one cup to finish the experiment.