Kanulock Lockable Tie Down Straps. Lock any board or kayak to any roof-rack, it is so simple. Reinforced with stainless steel they can’t be cut with a knife.Includes 2 x straps, 2 x keys.4.0M / 13FT in length.Lockable.Reinforced with 2 x 2.5MM Braided Stainless Steel cables.Best Suited For:3  Longboards2 SUP’s2 x Wide SUP’sSit On Top Wide & Double KayaksFishing KayakMedium & Large Canoes