The Magic Straps are made of a soft fabric, and can be used to pull your bra straps together in the middle. This creates a racerback on either the front or on the back side of the bra. There are three pieces in each box; black, white and skin. The Magic Straps are 1CM/0.4IN wide. Soft fabric straps to pull bra straps together Creating a racerback effect Prevents bra straps from sliding Can also be used at the front of a bra Contains three pieces in three different colors