Estex Compression tool and bolt cutter bags are made from heavyweight vinyl coated nylon with a heavy bottom reinforcement. There are several rivets inthe bottom edge for additional support. This version has two pockets for either two compression tools or one compression tool and one bolt cutter. Some linemen will put "D" dies in one tool and "O" dies in another so they don't have to change dies while on the job. The back is extended so the tool handles do not extend too high above the lip of the bucket.