Features: 1Purpose: This billiard straightness detector is mainly used to detect the straightness of the club, so as to adjust the direction in time. 2For Billiards: This pool cue straightness checker is mainly used for billiards, snooker cues, cue inspection tools, very suitable for playing billiards. 3Small and Lightweight: This billiard ball straightness detector product is small in size and light in weight, so it can be carried around and easily stored. 4Durable: This straightness detector is made of selected 6063 aluminum material, which is wear resistant, not easy to damage, and durable. 5More Situations Applicable: This billiard cue straightness detector can not only be used for playing billiards at home, but also can be used in public places such as billiard halls and billiard clubs. Package included: 2 x Detector 1 x Storage Bag