Reinforced interior bottom panel and heavy duty stitching and bar tacking at stress points. 18" 'MegaMouth' opens wide for easy access. 12 multi-use pockets inside and 13 outside organize tools and accessories. Internal metal frame holds bag open, large interior to carry power tools, circular saws and hard hats. Padded handles and adjustable shoulder strap.18"L x 11"W x 12"H.