Tool kit: Package contains 3 pcs different tools, wraps per inch single tool, yarn spinner gauge, wood multi-functional knitting gauge rulers. WPI Specification: Quickly determine the WPI rating by counting the number of yarn wraps per inch or laying the yarn along the black strip to find a match. Gauge: Knitting needles are US 0-15 and metric 2-10mm. This hole can help you quickly confirm the needle size. Convenience: Convex notches are used to fix on the spinner to avoid yarn unraveling. Round hole can be paired with gift chain and lobster clasp, easy to carry or hang anywhere you want. Multifunctional: Made of high quality wood, clearly marked and multi-functional, you can quickly determine the needle number, WPI and yarn weight. A perfect multifunctional sewing and knitting tool for everyday use. Color: Wood Brown Material: Wood Package Contents: 3 * Knitting Needle Gauge Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.