Feature●【Product Description】 It has the Inch marks on the front with 1/8" 1/4" and 1/2" marks.The back arch has degree markings on it, center back is 0 and to both sides up to 90 degree. Markers are in 1 degree and 10 degree increments●【High quality material】 Made of ABS plastic, this tool is built to withstand the rigors of regular use without compromising accuracy●【Easy to use】 The 3D printed design allows for a lightweight and user-friendly tool that can be easily adjusted and manipulated for quick and accurate measurements●【Package Includes】 1 X Bowling ball quarter scale layout tool●【Notes】 This product is a vulnerable product. Please confirm promptly whether the product is in good condition upon receipt. If there is any damage, please contact us as soon as possibleDescription