Neewer 3 Pack Steel Construction Drum Keys Fit for 1/4 Inch Standard Socket Square Drum Key Tension Rods 3 drum keys included,providing great convenience for replacerment. Industry standard drum key- fits most drums with square lugs. The steel construction makes it durable and gives it a longer service time. Fits all 1/4 " Standard Socket Square Drum Key Tension Rods. Perfect for tightening your drum heads.