Turbo Shur Hook Cork Tape Box- 40 Count Used in place of traditional finger inserts, Cork Tape has a subtle surface texture allowing for perfect grip control and release Cork Tape is installed on the front edge of finger hole and can be cut to fit any size finger hole Preferred by many leading PBA Tour Professionals like Amleto Monacelli, Shur Hook Cork Tape has been used for decades by bowlers of all skill levels