In addition to the bin storage, these cabinets are available with 3 adjustable shelves. Not only can you store small parts but you can store those heavy tools as well. The Large bin measures 8 1/4” w x 14 3/4” d x 7” h and will hold up to 60 lbs. The small bin is 4 1/8” w x 7 3/8” d x 3” h and will hold up to 10 lbs. We recommend that these cabinets be anchored to your floor or wall.