Ozone V2 4 LINESET 500/300kgReplacement 500 300kg Line sets for Ozone contact bars Comes in sets of 4 lines, 2 grey front lines and a red blue rear lines. Rated at 500kg breaking strength on the front grey lines, and 300kg on the red blue rear lines. These are suitable for the Ozone Contact Water control Bar with PUSH AWAY release (2012 onwards). If in doubt please call us to check. Red Blue rear lines are sleeved both ends, grey white front lines are only sleeved on the kite