Laser Replica Cunningham assembly (98079) upgraded to Ball Bearing Blocks The Barton Cunningham assembly comes with 8:1 purchase for those who find the standard system a struggle. It is simple to fit and easy to use. Components can be configured to be class legal. Contains: N10110 Series 0 single fixed eye (attached to primary red line through sail eye). N10110 Series 0 single fixed eye ( attached to secondary yellow line short tail). Primary line 0.44m x 4mm red Dyneema (with long and short loops). Secondary line 3.5m x 4mm yellow line (large loop provided with long and short tails). Part of the Barton range