This kit contains a wide variety of gears and other types of mechanical elements such as: crown gears, rack gears, worm gears, pulleys and rubber bands, these are very convenient to replace the broken ones and to model accessories for cars, robots, etc.

This kit includes:

• 19 X Double Reduction Gear
• 13 X Single Reduction Gear
• 11 X Crown Gear
• 2 x Worm Gear
• 9 X Spindle Gear
• 7 X Belt Pulley
• 6 X Axle Sleeve
• 5 X Rubber bands
• 2 X Rack gear
• 1 X Tee Collar