Stainless steel, lightweight and easily portable patented security device designed to immobilize most types of construction equipment, including loader/backhoes, skid-steer loaders, crawlers, graders and articulated loaders. SleevLock locks down an extended hydraulic cylinder, disabling movement and making the machine immobile. Made of high-grade stainless steel, SleevLock is highly resistant to sawing, burning or prying. Held secure by a six-pin tumbler lock designed to prevent removal by bolt cutters. They can be keyed alike or differently with a dedicated master key. You can also request restricted keys. (This key can only be made by the original locksmith)