Blokart Land Sailing Mainsheet Block Kit Upgrade or replace your current Mainsheet line hardware with the Barton class-approved Blokart Land Sailing Mainsheet Block Kit. Creates a user-friendly mechanical advantage on the mainsheet line. Complete with all hardware and instructions. *Mainsheet line sold separately.  Compatible With:  * Blokart Land Sailing vessel In the Box: * 1 x Ratchet Block (90500) * 1 x 30mm Single swivel block (N01130) * 1 x Stand up Spring * 2 x Rope Stopper Black (6mm & 8mm) *Sold as a Kit