Tennis Grommet sets are unique to each racket therefore Gefen Sports needs to know the exact brand, model, how many holes on the top part, how many holes on each side and bottom side and string pattern 16x19 or 18x20. Most Grommets sets are black but sometimes are in different colours which Gefen Sports needs to know. Fitting Babolat tennis grommets is the most difficult, £13.00 Yonex and Wilson tennis rackets £12.00 due the price of grommet set of £10.00 All other brands £10.00. All Squash rackets Grommet fitting price £12.00. We fit badminton grommets too each individual grommet 50p. Replacing a complete set of grommets in badminton racket is £30.00 due to the laborious time consuming job.