10 shapes,meet your different needs. Rubber-coated, non-slip handle with grained treatment for a comfortable, non-slip feel. Great for 3D Print Clean-up & Arts and Crafts. GCR15 bearing steel base material, with a hardness of up to HRC60, is tough, tough, and wear-. hardening treatment enhances hardness and significantly improves durability. Compact and Portable: These small files are easy to store and carry, making them a handy addition to any tool kit., Weight: 0.26675933702 pounds, Manufacturer: Hipzeepo