This tool bag has a heavy duty zipper. It opens up and out like a doctor's bag, enabling you to reach everything easily. It has 8 inside pockets, and one large compartment, and has 10 pockets outside. Enough space to carry most everything you need to do the job.This bag is constructed of canvas material, and it weighs 1 pound, 11.4 ounces Heavy duty zipper, with reinforced stitching at all stress points and plastic "feet" on the bottom One large compartment inside, with 8 smaller pockets all the way around 10 Outside pockets all the way around, side pockets include reflective material Sturdy nylon handles, and an adjustable, removable shoulder strap with comfort panel