2 Pack portable organizers are made of durable polypropylene. Organized storage for 12pcs SAE and 12pcs Metric wrenches . Non-slip slots lock in wrenches while keep easy one-handed removal. Holds 1/4-inch to 15/16-inch and 6 mm to 18 mm wrenches. Ideal for organizing wrenches and other tools, ideal for toolbox or wall storage. Portable.