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Spindle straight tooth9 kinds(each one).Crown gear 11 kinds(each one)
Single gear12 kinds(each one).Double gear19 kinds(each one)
Connecting rack2 Pcs.Belt pulley7 kinds(each one)
Worm2 kinds(each one).Axle sleeve6 Pcs
Tee collar1 Pcs.Gear-B 1Pcs.Belt 5 kinds(each one)
VERY100 75 Kinds Plastic Shaft Single Double Crown Worm Gears DIY for Robot B00SKD8Q1Y