Circle Snaps 4 convenient hole sizes in each of three Circle Snap holdersEarthen magnets lock holders to steel to prevent movement while cuttingLoops swing out & lock ... ready for cuttingWorks with any conventional gas cutting torch Size Group: SmallHole Diam: 1 7/16 in [Max], 1 9/16 in [Max], 1 11/16 in [Max], 1 13/16 in [Max]Wt.: 1 lb