uxcell Nitrile Rubber O-Rings 19mm OD 15mm ID 2mm Width, Metric Sealing Gasket for Automotive Machine Plumbing, Pack of 50 15mmx19mmx2mm industrial Wavelength :980nm Power output: 5mW

Wavelength :980nm Power output: 5mW Laser Shape:DOT Operating Voltage:DC3V-5V Operating Current: <280mA Operating temperature: 0 - 40°C Size:12mm(D)38(L) mm Packing:1X980nm laser module

The kids will get to experiment with the different concepts and functions of water while getting crafty with building their water tornado

phone cleaner or any electronic cleaner

Also compatible with the motor whose reduction ratio is 1:130

Back of Bathroom

uxcell Nitrile Rubber O-Rings 19mm OD 15mm ID 2mm Width, Metric Sealing Gasket for Automotive Machine Plumbing, Pack of 50 15mmx19mmx2mm industrial Wavelength :980nm Power output: 5mWuxcell Nitrile Rubber O Rings 19mm OD 15mm ID 2mm Width, Metric Sealing Gasket for Automotive Machine Plumbing, Pack of 50 Product Features [Size] 19mm Outside Diameter, 15mm Inner Diameter, 2mm Cross Section Diameter [Hardness] 70A Durometer (Shore Hardness) for resistance to penetration [Nitrile Rubber] Standard Nitrile Butadiene Rubber with a wide temperature range from 4F ( 20C) to 212F (100C). The o rings has smooth surface, great oil and heat