Gibraltar products are known for their solid reliability. They stand the test of time — and life on the road! So when you're looking for rock-solid hardware and dependable accessories for your drum kit, And when it comes to absolutely critical drum accessories, the tuning key has got to be first in line. This 1/4 inch -socket Gibraltar Standard Drum Key fits all standard tension rods, as well as any other hardware or percussion instruments employing 1/4 inch square heads.