| GM-OPP005 Material : Stainless steel Size : 25.4mm Plating : Without Epoxy : With Attachment: Butterfly clutch | |
| GM-OPP004 Material : Brass Size : 27mm Plating : Without Epoxy : With Attachment: Butterfly clutch | |
| GM-OPP003 Material : Brass Size : 25.4mm Plating : Without Epoxy : With Attachment: Butterfly clutch | |
| GM-OPP002 Material : Brass Size : 25.4mm Plating : Without Epoxy : With Attachment: Butterfly clutch | |
| GM-OPP001 Material : Stainless steel Size : 31.8mm Plating : Without Epoxy : With Attachment: Butterfly clutch |





