One-time use only, a 25 pack of 4 meter / 13.1 ft. length IGNITE clip-on igniters. For the i18 and i36 Modules Clip-on igniters are designed for clipping onto the side of a Visco fuses. Installation: Attach the clip to the desired fuse ensuring proper contact from the side, then plug the other end into the IGNITE firing module.