Tru Tuner Drum Head Replacement System
Tru Tuner Drum Head Replacement System, Tuning Key System, Patented tuning system, For drum shells in sizes: 8"", 10"", 12"", 13"", 14"", 16"", 10 Matching tuning keys, Fits in all common cymbal bags, All the tuning screws are tightened by rotation