The Petzl Spatha S is a multi-purpose knife with some great features. The sharp, serrated blade is perfect for cutting rope or cord when setting up abseils or in emergency situations. The knife can be carried easily with a carrabiner through the large hole and attached to bag or harness, and because it is so light you will barely notice it! The textured opening wheel is great for use with gloves and can easily be opened one handed. The perfect knife to carry when climbing!