Features: Set of drum mute pads, suitable for drum practicer. Self-adhesive design, easy to use and take off, convenient to carry and collect. Good accessories for drums, dampen ringing or overtones you don't want, bring you much convenience. Safe and non-toxic silica gel material, will not threat your healthy. Widely applicable for drums or percussion instrument, help you to practice better. Specifications: Color: Transparent Material: Silica gel Quantity: 12pcs / 20pcs(optional) Item weight: 23g / 0.81(12pcs), 37g / 1.31oz(20pcs) Item size: 3 * 2.5 * 0.27cm / 1.18 * 0.98 * 0.11in(single pad) Package weight: 24g / 0.85oz(12pcs), 38g / 1.34oz(20pcs) Package size: 15.3 * 10 * 1cm / 6.02 * 3.94 * 0.39in Package List: 12pcs: 12 * Mute Pads 20pcs: 20 * Mute Pads