Fits pole diameter 1-1/2"

Cast Aluminum, Single Pulley 1" outside diameter cast nylon on 3/16" stainless steel axle. Max halyard diameter 1/4". Truck secured by 1 stainless steel set screw (size 1/4"-20NC)

Accepts spindle threading Ornaments of 1/2"-13NC. Secured by 1 stainless steel pan head screw (size 10-32)