Description: brand new and high quality 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 Woofer Edge only, other accessories demo in the picture is not included! Specifications: Item Type: Repair 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 Woofer Edge