Features: 30piece drum screws and tension rods set crafted from metal, perfect for replacing or repairing drum hardware to ensure optimal sound performances. Precisions engineered in multiple lengths (60mm, 70mm, 80mm, 90mm) for seamless compatibilitys with drum tension rods and percussion instruments. Ideal for drummers, music technicians, or instrument enthusiasts seeking reliable replacement parts to maintain drum integrity and tuning stability. Essential for stage setups, studio, or home practice to quickly fix loose drum head, adjust tension, and enhances playabilitys during performances. Each screw undergoes rigorous machining for corrosion resistance and longevity, making it a must have accessory for drum maintenance and professional grade percussion care. Specifications: Material: Metal A Size: Approx. 2.36inch(60mm) B Size: Approx. 2.76inch(70mm) C Size: Approx. 3.15inch(80mm) D Size: Approx. 3.54inch(90mm) Package Includes: 30x Drum Tight Screws note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.