Creating your next masterpiece is easy when you have the best tools to work with. This knife is perfect for paper and fabric detail work! Details Gray blue handle6.2" (16 cm) length No. 11 blade size 18 craft knives Includes 5 spare blades (No. 11) Perfect for precision cutting Cushion grip Safety cap Blade replacement instructions are as follows: 1. Begin by placing the safety cap on the blade and turning the neck counter-clockwise to release the blade 2. Remove safety cap and carefully remove the dull blade and dispose of it properly 3. Insert new blade into the neck and place the safety cap back on the blade 4. Turn the neck close-wise until it is tightened and secure