Allows for easy organisation of tools and connects directly to Pro-Stack modules. The 600 denier fabric offers durability and long life and the plastic base is there to protect bag and its contents when placed on a wet surface. The bag has a padded shoulder strap for comfort when carrying heavy loads. Features: Large open mouth bag, Multiple internal and external pockets, External spirit level straps, Plastic base, Padded shoulder strap, Zipped side compartment, Pro-Stack compatible.