EASY TO STORE- The Stalwart 36-piece stamping set comes in a storage box which allows you to keep your punch set safe, secure, and organized until your next use. The case also makes for easy transport and storing of the set pieces inside and outside of your home. MULTIFUNCTIONAL SET- The steel die punch pieces with 4mm letter character height and 3.6mm number height can be used for a wide variety of uses. Decorate and personalize metal jewelry, leather, keys, spoons and utensils and more. Ideal for loss prevention on items like bicycles, sports equipment and tools. DURABLE - Stalwart's 36 pc stamping punch sets are built to last and are constructed using high quality materials. Constructed of hardened steel, the letter and number punches will give many years of service, are economical and are fun to use. PORTABLE CARRYING CASE - The case also makes for easy transport and storing of the set pieces inside and outside of your home. PRODUCT DETAILS - The 36-piece, 1/8-inch set contains letters A-Z, numbers 0-9 and the & symbol in a wood storage case. Material: Steel. Character height letter 5/32 inch/4mm x 2mm, Numbers 9/64 inch/3.6mm x 2mm.