Source google image: https://ae01.alicdn.com/kf/HTB1urFzhwDD8KJjy0Fdq6AjvXXaE/1-Set-Sponge-Studio-Monitor-Speaker-Acoustic-Isolation-Foam-Isolator-Pads-30x20x4-5cm-B119.jpg_640x640.jpg
Isolation 5 cm
Source google image: https://ae01.alicdn.com/kf/HTB1urFzhwDD8KJjy0Fdq6AjvXXaE/1-Set-Sponge-Studio-Monitor-Speaker-Acoustic-Isolation-Foam-Isolator-Pads-30x20x4-5cm-B119.jpg_640x640.jpg