When you receive a new pair of T-Springs, you will be able to install them yourself (instructions will be included).
Please Note: Springs named with a "T" at the beginning (T-0, T-1, T-2, and T-3) can be used for size SMALL and MEDIUM Air Kicks boots only (#11205 and 11206). Springs with an "S" at the beginning of the model name (S-2, S-3, and S-4) can be used for size LARGE boots only (#11207).