23Pcs/Set High Quality Felt Drum Washer Long Life Fastening Tightly Mini Felt Washer Wing Nuts Washer Housing Sleeve Set Specifications:What the product can offer is that it will greatly improve the sound effect and protect the drum, cymbal from scratches and collisions, with many accessories such as nuts, gaskets, housings to fasten tightly. Absolutely, it can be taken anywhere in use with its compact mini size, and lightweight texture is portable with a long lifespan due to its solid texture and be portable to store in bags. Thanks to the use of plastics, metal, felt materials, this set will be solid and resistant to wear. This set has different tools and sizes for you. Suitable for most drum and cymbals in use. Item Name: Disc Felt PadMaterial: FeltFeatures: Anti-Scratch, Improve Sound, CompactColors: Grey, BlackSize Details:Case: 3.8cm x 2.6cm/1.5" x 1.02" (Approx.) Case Inner Diameter: 0.88cm/0.35" (Approx.) 2.5cm Felt Pad: 2.5cm x 1.5cm/0.98" x 0.59" (Approx.) 4cm Felt Pad: 4cm x 1.5cm/1.57" x 0.59" (Approx.) 5cm Felt Pad: 5cm x 0.8cm/1.97" x 0.31" (Approx.) Felt Washer Diameter: 1cm/0.39" (Approx.) Disc Nuts: 3.8cm x 2.6cm/1.5" x 1.02" (Approx.) Washer: 2.4cm x 0.76cm/0.94" x 0.3" (Approx.) Casing Tube: 4.1cm x 1.5cm/1.61" x 0.59" (Approx.