20 Pack of Round Magnets with Center Hole - 1.2" Diameter, 0.18" Thick, 0.37" Hole The unit has a USB

The unit has a USB port for connecting to a PC and includes Microsoft Windows compatible software for transmitting data and remote operation

50 - 22 x 22mm Plastic Cover Slips

Ideal for Hard Drives

even a beginner can do it in 15-20 minutes or so

The chassis can be upgraded to include four motors and encoders making it ideal for mecanum wheels

20 Pack of Round Magnets with Center Hole - 1.2" Diameter, 0.18" Thick, 0.37" Hole The unit has a USB20 Pack of round Ceramic Ferrite magnets with center hole Each magnet has a 1. 2 inch (31mm) diameter, and is 0. 18 inch (4. 75mm) thick The center hole has a 0. 37 inch (9. 5mm) diameter Ideal for science projects, art and crafts, making refrigerator magnets, and other DIY applications WARNING: CHOKING HAZARD. Not for children under 10 years. Magnets sticking together or becoming attached to a metallic object inside the human body can cause serious