This 30-piece wall-mountable, stackable storage bin set includes 18 small bins and 12 large bins. Dimensions: The 12 large bins measure 6.3"" x 4.1"" x 2.9"", the 18 small bins measure 4.3"" x 3.5"" x 1.9"", and the two mounting panels measure 12.6"" x 16.2"" the overall assembled size is 25.2"" x 16"" x 7"". Space-saving: The two mounting panels are easily installed on the wall, and the bins attach conveniently to the panels. Easy identification: Made of transparent plastic, the bins allow users to easily see and quickly locate the items they need. Diy configuration: The bin layout is customizable, making the set suitable for either workbench placement or wall mounting the two panels can be installed separately or joined together using H-connectors to form a single, larger panel. Weight: 4.29 lbs.