ITEM NAME:75 PCS lot Plastic Gear Set DIY.Rack Pulley Belt Worm Gears SingleB Hn.Worm Rod 2 styles. Belt Pulley 7 styles. TEE Axle sleeve 1 piece. Connecting rack 2 styles. Single Layer gear 12 styles. Double Layer gear 19 styles. Crown gear 11 styles. Belt 5 styles.
