Garage Drive Disconnect Chain Hoist 4:1 Reduction Wall Mounting Sectional Doors. Maximum pull allowed on hand chain is 35lb. Includes (1) 41B36 sprocket with 1? Bore, 4' of #41 roller chain, 26' of hand chain, (1) chain keeper and limit switch.This item is in the category "Home & Garden\Home Improvement\Building & Hardware\Garage Doors & Openers\Opener Parts". The seller is "household-supplies-mega-store" and is located in this country: US. This item can be shipped worldwide.