E-WOITD 4.5 inch 115mm universal audio speaker stereo woofer repair surround foam edge

Specification: Name: 4.5 inch speaker foam edge surround Material: Foam Outside diameter: 115mm ±2% Inside diameter: 74mm ±2% Convex outside diameter: 103mm ±2% Convex inside diameter: 85mm ±2% 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: Please allow 1-5mm deviation due to manual measurement. Package Included: 1x 4.5 inch Speaker Foam Surround