FEATURES -Simply drop into your vise & provide a solid clamping surface on any Picatinny rail-Perfect for guaranteed alignment between your upper receiver & YHM free-float handguardsPRODUCT SPECIFICATIONS:Dimension 1.75 X 3.35 X 7.50Height 1.7500Width 3.3500Length 7.5000TYPE/COLOR VISE JAWSSIZE/FINISH FITS ALL PICT. RAILSMATERIAL STEELAR-15 ACCESSORY YOTHER FEATURES: JAWS SLIP IN ANY VISE TO PROVIDE A SOLID CLAMPING SURFACE ON ANY PICATINNY RAILNO DIRECT SHIP TO CALIFORNIA