Package includes: You will receive 24pcs ski & snowboard boots J bars self-adhesive foam padding include12pcs red is and 12pcs black J bars self-adhesive foam padding Scientific design: The thickness is 3mm and 5mm Ski & snowboard boots J bars have self-adaptive foam padding in two thicknesses and colors to meet your different needs and preferences Practical and durable: Each padded cushion is made from a firm neoprene foam that is not easy to be worn out and can be restored after being squeezed. If you need thicker J bars self-adaptive foam padding, you can stack the two strips together to make thicker pads Easy to use: Each pad is made with a self-adhesive sticky backing; To use the J bars simply remove the backing then apply the sticky side to your boot liners Use effect: The J bars help people with narrow ankles experience less lift in their heels, and reduce ankle blister potential Each J bar boot insert accessories help you ski & snowboard with greater comfort, and brings a snug boot fit