This is a STANLEY GARAGE opener Sensitivity knob #360-2424 with detent ring # 360-1930 for a Stanley chain drive garage door opener. this is (P/N# 360 2424) , this does not include the gear or spring assembly if you need those they are sold separately. this fit many of the stanley models check the part # it is molded on top in the plastic in small print. This is used, and has been inspected for wear and cracks, and is in perfect condition stk#(849)A12-B2
