Description: High Quality: Premium Billiard cue straightness checker is made of aluminum alloy, high quality, durable, stable, and perfect for your pool/billiard/snooker shaft/cue checking.Easy to Use: Billiard cue straightness checker is designed to check the straightness of the butt/shaft (Roll the shaft/butt alone and see if there are any wobbles).Perfect Size: Pocket size(length is 6.8cm/2.68inch, front seat height is 3.15cm/1.24inch, rear seat height is 2.85cm/1.12inch), allows you to take the Billiard cue straightness checker anywhere.Easy to Carry: The snooker club roller straightness detector checker inspection tool is lightweight and compact in size, easy to carry and use.Multifunction Use: Good accessories for pool cue repair maintenance and care Great gifts for friends, family, lovers, or people who love billiards. Specification: Material: Aluminum Alloy Size Chart: Length: 6.8cm/2.68inchFront Seat Height: 3.15cm/1.24inchRear Seat Height: 2.85cm/1.12inch Package Includes: 1 Pair Billiard Cue Straightness Checker Note: Please allow slightly errors due to manual measurement and different monitors.