The Any Chair system transforms chairs into a fully modular tackle station. Simply open the knuckle to fit onto your chair leg and use the supplied inserts to achieve the best fit. You can adjust the angle with the handwheel system for the perfect setup. Supplied with inserts for 23mm round 25mm round and 23mm square. Will fit directly to Korum X25 and S23 Accessory chairs.This EVA Bowl & Riddle set comes with a 3.5mm rubber mesh riddle insert sized perfectly for use with big fish groundbaits and natural baits like maggots and worms. 25cm x 15cm.