32 Pack 4.5-inch Clear Plastic Dual Lens Magnifier, 3X and 6X Magnification 0" and features a drainage

0" and features a drainage hole on the bottom

Simply spin in your hand or on a table and watch it go

This kit teaches how stereo amplifiers take a small signal and "magnify" it to drive two small speakers or stereo headphones Based on two LM386 Low Voltage Power Amplifier and one LM1458 operational amplifier IC Once assembled

then turn off at sunrise to allow the sunlight to recharge their internal battery

The arms move independently and feature V shaped grooves

32 Pack 4.5-inch Clear Plastic Dual Lens Magnifier, 3X and 6X Magnification 0" and features a drainage32 Pack Clear plastic magnifier is 110mm (4. 50") in length and features dual lenses of 3x and 6x magnification 3x lens is 50mm in diameter and 6x lens is 20mm in diameter. Ideal for reading maps or newspapers, inspecting jewelry or electronic components, and other situations where a little magnification is useful