Ideal accessory for your seatbox. The Combo helps to keep everything handy and provides great protection for your expensive carbon products. The Combo has a Snaplok block on each end that allows you to flip the product over and place the Sock or Pole-Grip closer to the seat box. The Combo has the same features as the Sock, but also has a Pole-Grip, giving the angler both options. Many anglers prefer to use a grip for smaller sections while storing unused butt sections in the Sock. Super high quality!