Description: Material: Billiard cue straightness checker is made of Nylon, sturdy, stable, and great for your pool/billiard/snooker shaft/cue checkingEasy to Use: Billiard cue straightness checker is designed to check the straightness of the /shaft (Roll the shaft/ alone and see if there are any wobbles)Great Size: 5.7 x 3.2 x 3 cm / 2.24 x 1.26 x 1.18 inch, and 5.7 x 3.2 x 3.5 cm / 2.24 x 1.26 x 1.38 inch, allows you to take the Billiard cue straightness checker anywhereEasy to Carry: The snooker club roller straightness detectors checker inspection tool is lightweight and compact in size, easy to carry and useMultifunction Use: Good accessories for pool cue repair maintenance and care Great gifts for friends, family, lovers, or People who love billiards Specification: Material: Nylon Size Chart: 5.7cmx3.2cmx3cm/2.24inchx1.26inchx1.18inch5.7cmx3.2cmx3.5cm/2.24inchx1.26inchx1.38inch Package Includes: 1 Pair Billiard Cue Straightness Checker Note: Please allow slightly errors 1-2cm differences due to manual measurement.