I use this as a holster for lubricants, and spray paints while working on large projects.When not working on large projects this also makes for a great holster for beverages of most any size.Super handy, works well. The velcro on the outside is useful.If you just need to put that can of beans, or extra tube of caulk, or water bottle, or 1 liter soda, or hammer, or drill bit case, or snack pack, or hand grenade, or compact telescoping umbrella, or TV remote or pretty much anything of similar dimensions into a holster you can strap onto just about anything so your hands are free to climb ladders, drink tea, hold other things, shake customers hand, go shopping, cook, or whatever other things you needs hands for (Hands are handy).This is a great product.(I use my belt and an elastic strap around thigh for tools/weightier things, the strap keeps the pack from bouncing while walking.)