and high quality Features: Made of high-quality rubber material, high elasticity, flexible, and not easy to break. This rubber edge is anti-aging with moderate softness and hardness. Six size options available, suitable for 4/5/6.5/8/10/12 inch speakers. Designed to replace old, broken, or damaged speaker surrounds. Easy and simple to install. Includes repair foam woofer edge only; other accessories shown in the picture are 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 Installation Instructions: Remove the gasket and clean off old foam residue. Apply contact cement (not included) and center the surround evenly on the cone. Press the inside of the surround to the cone using thumb on top and index finger inside the frame, working around the perimeter until fully adhered. Apply wood glue to the outer frame and press the surround down firmly. Reattach the gasket to the outer surround. Note: No retail packaging included. 1cm = 10mm = 0.39inch. Allow 0-1cm variation due to manual measurement. Due to differences in monitor displays, actual color may vary from the image. Package Includes: 2 x Repair Foam Woofer Edge