Soloflex butterfly attachment with 2 foam pads. Assembles over main rail. Requires SS attachment pin to hold on main rail (not included). Ships partially disassembled into 3 main parts to reduce shipping cost. Assembly points and hardware will be marked "A" and "B". Align 2 pcs, insert bushing hinge pin and snap on retaining clip using flat head screwdriver. Heavy steel construction, built for long life.
