ITEM NAME:SK8 8mm Inner Dia Linear Rail Shaft Support XYZ Table CNC H3N5 SK8 8mm Inner Dia Linear Rail Shaft Support XYZ Table CNC H3N5 Product Name : Linear Rail Shaft Support; Total Size : 4.1 x 1.4 x 3.3cm / 1.6" 0.55" x 1.3"(L*W*T) Shaft Inner Dia : 8mm/ 0.31";Material : Aluminum Mounting Hole Dia : 5.5mm/ 0.22";Hole Spacing : 33mm/ 1.3" Main Color : Silver Tone;Weight : 26g 8mm SK8 linear rail shaft supports which have been CNC machined from aluminium. This SK8 shaft supports is designed and manufactured from aluminum, they are an ideal solution when used with Linear Round Rails. Package Content : 1 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..8mm SK8 linear rail shaft supports which have been CNC machined from aluminium. This SK8 shaft supports is designed and manufactured from aluminum, they are an ideal solution when used with Linear Round Rails.