Multipurpose Cutter Heavy Duty Comfortable handle and snap-in bladeHeavy-duty silver snap-on blade made of stainless steel for unparalleled sharpness and edge retention.STURDY HANDLE - Made of high-impact plastic, the handle provides extra strength for tough cutting projects.Stainless steel channel keeps blade firmly in place for safe operation.There is also a keychain/lanyard hole for attaching.CUSTOM RATCHET LOCK CONTROL - Designed with safety in mind, our ratchet-based locking system provides custom cutting depths.The blade slider has a wheel locking mechanism for unlimited positions when holding the blade in place.