The LT146 has a super strong snap and lock design that will not come apart during use. Fast quick connections in tough lockout situations. The LT146-QB & 146-QC now have whale tail tip design for more working tip on lock surfaces. Adjustable 5 piece kit for 33″ reach to an amazing 53″ reach. This kit also includes the Inflate-A-WedgeTM (LT275), Plastic Slip Jim (LT-100) and two Plastic Door Wedges (LT271). Zinc plated. Also available is a 15″ add-on extension – LT146-QD.