This wall mounted plastic storage bin set is a must have for any workshop, ideal for storing nuts, bolts and other small parts. Its 30 pieces removable and stackable storage bins are made of polypropylene which has high thermal stability, high electrical property and is resistant to common acids, alkali and other organic solvents. With this storage bin set at hand, instead of stacking small parts in a mess you are able to maintain them in great order for both the convenience of future use and the clarity of workshop.