1. The used to make the handle, which upgrades the product's strength, hardness and temperature resistance. 2. 420J2 stainless steel blade. It is not easy to rust when used underwater for a long time. 3. Two spare blades are available for self-replacement. 4. High strength nylon cutter cover, can be worn through 6CM webbing, easy to wear on your BCD, waistband and other positions. Name: Underwater cutter Size: 10 x 3.5 x 0.8cm : PP+stainless steel colour: yellow Package Contents: 1 x Underwater cutter kit Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.