With 3 removable clear plastic containers . this HART SYSTEM 3-Set Organizer placement for your fasteners . screws . nuts . bolts . bits . and more. Also offers serious crafters and home DIY-ers alike a flexible way to organize . store and transport small-to-medium-sized items. Everything about this organizer is designed to give you maximum flexibility. Since you won’t always need all your items with you at the same time . this modular organizer gives you the option of taking either one organizer container or the whole storage unit to wherever you’re working. Each of the containers can be easily customized using the moveable dividers to create the spaces that suit your storage need best. HART STACK SYSTEM 3-Set Organizer is constructed of lightweight yet highly durable plastics that will keep your contents protected from the rigours of everyday usage. The HART STACK system 3-Set Organizer can also be easily assembled onto the HART STACK system . so you can take your small items securely from place to place.