Rugged enough for daily use on the jobsite. Heavy duty unbreakable ABS construction.Bin dimensions: 3" L x 2" W x1-7/8" D (set of three), 2" L x 1-3/8" W x 1-7/8" D (set of twelve) Overall dimensions: 13" L x 8" W x 2-3/4" H Weight: 1.20 lbs.