Made of 316 Hardened Stainless Steel. Cut corals or rock with very little effort. Ribbed rubber handle for easy grip and safety lock. Be sure to rinse with fresh water after using! Precision model is good for getting into crack & crevices to break rocks. Pry mushrooms or zoos right off the rock with ease! If you do a lot of fraagging, you will find it very useful to have both Precision and HD clippers.