Make of aluminum and bearing enduring stable and perfect for your pool/billiard/Snookers shafts/cue checking. Designed to check the straightness of butt/shafts (Roll the shafts/butt alone and see if there is any wobbles). Light weight and compacts in size, easy to carry and use. Good accessories for pool cue repair maintenance and care. Great for friend, family, lover, or people who love billiards.