ITEM NAME:2Pcs SK8 8mm Linear Rail Shaft Clamping Guide Support for XYZ Table S8A1 2Pcs SK8 8mm Linear Rail Shaft Clamping Guide Support for XYZ Table S8A1 Product Name : Linear Rail Shaft Support;Model No. : SK8;Material : Aluminum Alloy Bore : 8mm;Clamping Bolt : M3 Recommended Mounting Bolt : M5(not included here);Mounting Hole Distance : 32mm/1.26"(from center to center) Size : 41 x 14 x 33mm / 1.6" x 0.6" x 1.3"(L*W*H);Color : Silver Tone 2 PCS SK8 8mm Bore Linear Rail Shaft Guide Support for XYZ Table CNC Net Weight : 58g Package Content : 2 x Linear Rail Shaft Support Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..2 PCS SK8 8mm Bore Linear Rail Shaft Guide Support for XYZ Table CNC. : SK8;Material : Aluminum Alloy. Bore : 8mm;Clamping Bolt : M3.