I have 6 rackets of the same type, but grip sizes ranging from 4 1/8 to 4 3/8. My preferred size is 4 1/4 with overgrip included. Using this as the replacement grip for the rackets with 4 3/8 allowed me to make the grip smaller to be about 4 1/4. I'm buying 4 more. I also use these on my student's rackets, and in some cases, their parents bought them a grip size that is too big.