Flagaway&reg; Heavy Duty Black Steel 1.50" (1-1/2-Inch) QD Quick Detachable Release Slot Loop Rotating Push Button Swivels Locks to any Mount Attachment Rifle Or Shotgun = USE WITH SLING OR ANY OTHER ATTACHMENT UNIVERSAL 1 Piece QD Quick Detach Puch Button Swivels Steel 1.50" (1-1/2-Inch). Designed for Slings 1.50" Wide or Less. Super Heavy-Duty Push Button Swivel Made of steel with a black finish