Grovtec Two Piece Barrel Band Swivel Sets .585 - .635 Diameter Black 2/ct SPECIFICATIONS BRAND: GROVTEC CA PROP 65: YES CA PROP 65 CHEMICAL: LEAD & LEAD COMPOUNDS COLOR: BLACK FIREARM ACCESSORIES TYPE: SWIVEL HARDWARE QUANTITY: 2 DESCRIPTION No swivel stud on your shotgun forearm? Want to mount a sling on your lever action rifle's magazine tube? Our GT™ Barrel Band Swivel Sets are your answer. Our one and two-piece barrel band sets fit almost any firearm from a .22 rimfire magazine tube of .420" diameter up to shotgun barrel with a .900" diameter. Always verify the diameter of your mounting surface prior to ordering.