Sandpiper of California PRP Retrofit Accessory Kit PRP Retrofit Accessory Kit in Coyote brown Versatile assortment of 3?4", 1" and 1 1?2" webbing, buckles, and other hardware Ideal for attaching gear, packs, or other cargo to the Pack Rabbit or Pack Mule frame systems Or for other cargo carrying systems for customized use with Pack Rabbit & Pack Mule frame Coordinates with the Pack Rabbit or Pack Mule frame systems