★ Pearl K-080 Tuning Key This T-shaped tool is used to adjust the tension of drumheads and tune the pitch. It's an essential accessory for many drummers. It's compatible with standard drum set tension bolts (5.4mm square). It can also be used to adjust pedals and stands. 4cm (length) x 5.8cm (width) The sphere is slightly blurred due to reflection. #music related items are here