Features: Made of high-quality rubber material, high elasticity, flexible, and not easy to break. This rubber edge is anti-aging, moderate softness and hardness. Six size optional, it is suitable for 4/5/6.5/8/10/12 inch speakers. To replace the old, broken or damaged one. Easy and simple to use and operate. Repair Foam Woofer Edge only, other accessories demo in the picture is not included Specifications: Item Type: Repair Foam Woofer Edge Material: Rubber Size: Outer Diameter: 4": 98mm/3.8in, 5": 127mm/5in, 6.5": 156mm/6.1in, 8": 195mm/7.6in, 10": 248mm/9.7in, 12": 295mm/11.6in(Optional) Color: Black Quantity: 2 PCS Methods of replacing: Remove the gasket and rub off old foam, apply contact cement(not included). Center the surround evenly as you place it on cone. Squeeze the inside of surround to cone with thumb on top and index finger up inside the frame, underneath the surround and go around a few times until it adheres. Apply elmers wood glue to outer frame, press down surround. Re-glue gasket to outer surround. Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package Includes: 2 x Repair Foam Woofer Edge Our products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-95272 days. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don"t hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it!