Package Includes:1 x Carving Bench Clamp;4 x Support Columns;4 x Screws. Support Range:0-55mm/0-2.2 Inch. Overall Size:106 X 59 X 47mm/4.2″ x 2.3″ x 1.9″(L*W*H). Made of high quality aluminium alloy,durable and non-deformable,fixation stability. The carving bench clamp is used for fixing small items,such as olives,walnuts,bodhi and other small items,good fixed effects.