Features 1、Use with plastic accessories for DIY toys. 2、Made of high quality ABS plastic, impact resistant, durable in use. 3、Safe and non-toxic, rest assured to use. 4、85 gear accessories, enough to handle a wide range of products. 5、Simple installation, easy to use. Specification Item Type: Toy Accessories Material: ABS plastic Sector Gear(4 Kinds): 28-tooth sector, 21-tooth sector, 15-tooth sector, 12-tooth sector Worm Gear(3 Kinds): 6-6, 6-7, 6-8 Blue Spindle(4 Kinds): D hole 3, 4mm hole, round hole 2.3, 3.17mm hole spindle Large Pulley(1 Kind): 363A2AB pink pulley Clutch Gear(2 Kinds): 163A clutch straight teeth, 263B clutch gear Colorful Shaft Sleeve(4 Kinds): Three 3-way (blue, green, yellow), one white 4-way Long Spindle Gear(1 Kind): 102A long Package List 4 x Sector Gear 3 x Worm Gear 4 x Blue Spindle 1 x Large Pulley 2 x Clutch Gear 4 x Colorful Shaft Sleeve 1 x Long Spindle Gear 1 x Copper Gear 1 x Bevel gear 1 x Rack 3 x Shaft Sleeve 3 x Belt 19 x Double-Layer Gear 8 x Spindle Gear 4 x Pulley 15 x Single-Layer Gear 14 x Crown Gear