Mission Replacement Skate HoldersSold as a left or right; this is done for some buyers who only need to replace fix etc one skate don't have to buy both. If you want the pair, simply add one foot and your size to the cart, and then add the other foot with the same size to the cart. BE SURE TO LOOK AT THE THREE DIGIT NUMBER ON THE BOTTOM OF YOUR EXISTING HOLDER TO GET THE CORRECT SIZE. The Mission holders are designed with an asymmetrical mounting plate design that offers maximum push