The Size 8's are designed to work perfectly with all lead discharging clips including Covert Lead Clips, the Size 12's are the perfect component for use in Chod Rigs, Helicopter Rigs and fined down terminal tackle presentations. Anti Glare black finish reduces visibility under water for ultimate camouflage.. Extra strong, smooth spinning and completely reliable in any situation - they will never let you down at a critical moment. Round swivel eyes ensure maximum knot strength. Size 8 swivel eye is sized perfectly to fit securely into all lead clips ensuring the lead is safely discharged before the swivel is released from the lead clip (IMPORTANT). Flexi-Ring Swivels improve rig presentation by allowing a variety of hooklink materials to pivot freely, offering more natural movement of the rig and hookbait. Flexi-Ring Swivels also help to prevent hooklink tangles when used with lead clips, running rigs or helicopter rigs. 10 swivels per packet.