and the head stays in tune.Sound Curve Collar DesignThis design allows the drumhead to seat perfectly on the bearing edge. No wrinkles even with loose tuning. It conforms instantly to any shell design and makes tuning fast, easy, and more accurate.Triple-Locking SystemThis unique system provides drummers with previously unheard-of advantages in resonance and playability. Firstly, holes are punched in the bottom of a U-shaped channel formed in the drumhead. These holes allow the epoxy to flow into the "Safe-T-Loc" channel. Secondly, the T-Ribs that form the Safe-T-Loc channel prevent the epoxy and the drumhead from slipping and pulling away from the hoop. Lastly, the Locking Shoulder acts as a "stop" to ensure the correct collar height for the drumhead.
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