1 Kayak / Half Carrier For use with 878XT Set-To-Go saddle Roller eliminates boat to load bar contact when loading boat Hydro Glide saddles center and guides boat while loading and gives a large surface area to support the hull Fully adjustable for different boat styles and sizes Includes one ratcheting tie down, strap and buckle protector (Additional tie down required for safe boat transport) Mounts to Thule square bars only