Features: 3.Drum Screw Tension Rods: Made of high-quality iron material, lightweight and .4.The bolt lengths are all appropriate sizes, you can easily tighten the drum head and get a good playing experience.5.The drum head can be easily tightened for easy installation and removal. Ideal for drum repairs and refurbishments.6.Drum Keys: Suitable for all 1/4 inch standard socket square drum key tension rods. For snares, toms and bass drum.7.Ideal tool for quickly and easily removing and replacing drum heads.Specifications:Material: Iron Silver PlatedColor: SilverBrand name: BQLZRSize:Drum Tension Screw:Rod length: 45mm/1.77 inchThread diameter: 6mm/0.24 inchT-shaped Drum Keys:Length: 45mm/1.77 inchHeight: 35mm/1.38 inchSocket inner diameter: 5.5x5.5mm/0.22 inchx0.22 inchZ-shaped Drum Keys:Length: 65mm/2.56 inchHeight: 44mm/1.73 inchSocket inner diameter: 5.5x5.5mm/0.22 inchx0.22 inchWeight: 204 gPackage include:10 x Drum Tension Rod2 x T-shaped Drum Keys1 x Z-shaped Drum Keys