Features: Kazoo Accessories: it can make your kazoo sound better and is suitable for replacing the old membrane. Good Quality: high strength hot pressing technology is used to make paper and film stick more firmly Selected Material: made of PET material, the kazoo membrane has stronger resonance, better sound quality and good durability. Easy to Carry: the membrane is lightweight, durable, compact and portable. Applicability: suitable for most kazoos and has a wide range of applications. As a Gift: it can be given as a gift to kazoo lovers. Specifications: Material: PET Quantity: 30 Item Diameter: 20mm / 0.79in Item Weight: 3g / 0.11oz Package Weight: 5g / 0.18oz Package Size: 7 * 5 * 0.5cm / 2.76 * 1.97 * 0.20in Package List: 30 * Diaphragms