This socket organizer is designed to work with almost all brands of sockets and features removable end caps for easy addition or removal of clips. It can fit neatly into a toolbox, be mounted vertically or horizontally on a wall, placed on a workbench, or stored in a drawer. The socket storage rails allow you to securely lock your sockets in place while making them easily accessible when needed. Made from premium molded ABS heavy duty socket rail plastic, accommodating both SAE and metric-sized short and long sockets.