Specification: This drum wrench is suitable for approximately 5.5mm/2.17in square mouth inner diameter. Quality Material: Made of high-quality alloy material for durability. Safe to Use: Smooth and rounded design to protect hands during use. Convenient to Use: Thickened and widened design allows for easier drumhead changes. Widely Compatible: Industry standard fit for all drums with 1/4 inch lugs. Specifications: Name: Drum Wrench Material: Alloy Color: Black Size: Approximately 49 x 55 x 5.5mm / 1.93 x 2.17 x 0.22in Package Contents: 1 x T-shaped Drum Wrench Note: The package includes only the items listed above. Other accessories are not included. Note: Due to lighting and display differences, the actual color may vary slightly from the image. Measurement may vary by +/- 1-3cm.