Spare Slider for BA41483 Inflatable Boat Spares Stainless Block Double Swivel Bkt 30mm Extras::Boat,Console & Tank, Bolster Tube, Bench Seat, T Top, Hydraulic Steering & Trailer Stainless Block Double Swivel Bkt 30mm Size 2 Traveller Car with double shackle take off and internal control line sheaves for Recirculating Ball Bearing Traveller System Length single take off mm: 166 Length double take off mm: 254 Weight single take off g: 547 Weight double take off g: 923 Width 'W' mm: 70 Width with control line cleats mm: 120 Height 2:1 mm: 44 Height 4:1 mm: 57 SWL Kg: 700 Max control line Ø mm: 8 Just lower the mainsail just below a pre determined mark on the halyard attach the reefed clew of the sail onto the reefing hooks (not supplied) at the mast end of the boom and tension the reefing line in and secure