This is a heavy duty vise made of hardened steel and polished brass. Head pivots up and down by loosening the bolt at top of shalt. Lever action head holds hooks tightly and allows for quick release. Holds hooks from size 4/0 down to size 20. Included is a heavy duty clamp mount to attach your vise to a work surfaces up to 2" in thickness. Similar to our FV2136 & FV2118, but this model does not rotate.