Features: 1.100% brand new and high quality Knives head is made of good quality plastic,conformtable and durable to use. 2.13psc precision knife set,multiple choices for your carving drafts, more convenient than single one. 3.Multi-functional knife, be use for mud sculpture, paper carving,etc. Blades can be replaced conveniently. 4.13psc precision knife are organized in a carrying case for easy storage and portability. Specifications: Material:High-carbon steel Product type: Precision knives Product weight: 122g Package size: 26*19*2.8cm Function: Mud sculpture, paper carving,etc Shank diameter:2.8cm 13pcs Precision Knives Includes: 1/4" Aluminum Collet Chuck & Metal Handle 3/8" Aluminum Collet Chuck & Metal Handle 3/8" Aluminum Collet Chuck & Plastic Handle 13pcs x Blades Product include: 3Pcs * Knives Handle 13Pcs * Blades in different sizes and shapes 1 * Storage Case