The Korda Zig Box is a compact storage system for up to 20 pre-tied rigs. The box is made from tough, impact-proof plastic and closes securely with a clip lock. Inside two compartments hold the 4 EVA spools, or you could just use 2 and use the other side to store tools. Each spool will hold up to 5 rigs or leaders dependent on the rig components. The Zig Box is supplied with 4 EVA Spools and 20 pins to secure the rigs on them.