Features 1、[Practical and Convenient] Archery straightness detector, used to determine archery straightness. Works with most types of arrows. 2、[Premium Material] Made of high quality aluminum alloy, it is very durable and can also be used to test the balance of broad head. It is an essential accessory for archery. 3、[Simple Operation] Place the rest of the archery on the probe and slowly turn the shaft with your hand. A good straight archery will hold steady. 4、[Check Defects for Arrows] Make your own arrows and use archery straightness detector to check for defects before cutting lengths. 5、[Rotation Again] Even after they have been cut and folded, the archery archery inspector are rotated again for inspection. Item Type: Archery Straightness Detector Material: Aluminum Alloy +PE Color: Blue Applicable: For Arrows Size: Length: Approx. 30cm/11.8in Package List 1 Set x Arrow Straightness Detector (3 Accessories)