Ideal for home exercise programs, the thera-band comfort fit ankle and wrist weight sets are available in three color-coded weight sets ranging from red (two 1 lb. weights), to green (two 1.5 lb. weights), to blue (two 2.5 lb. weights). the comfort fit ankle and wrist weight sets allow users to increase weight in strength training and rehabilitation programs without changing technique, which is fundamental to the principles of progressive exercise.