The TW200 from Tama is a drumhead tuner that measures head tension, providing guidance for evenly tensioning the drumhead. The new version features a removable nylon bumper that helps the player maintain a consistent distance from the rim while measuring. The TW200 offers a very readable display and intuitive, easy handling. For transport, the measuring probe can be retracted for protection. Details: Type TW200 Tension Watch, measures head tension, easily readable display, compact format, with nylon bumper for distance maintenance, retractable measuring probe for transport.