Stanley fatmax 18 open mouth rigid tool bag stanley fmst1 71180 the stanley fatmax open mouth tool bag has an open mouth design which allows for easy access to tools whilst the multiple internal and external pockets provide maximum organisation potential li the ergonomic design features a padded shoulder strap and a rubber grip handle for comfortable carrying the injected polypropylene base protects the bag from moisture and dirt the bag is made from 600 denier fabric that is hardwearin