Features: Superior Shock Absorption: Made with cushioning sponge, these isolation supports effectively dampen movements and minimize sound disruption for enhances listening household theaters and music production studios. Secure Grip: Features textured undersides that firmly grip platforms, keeping sound equipment stable during powerful bass output while maintaining optimal sound positioning. Minimized Sound Disruption: Designed to reduce direct contact between sound devices and platforms, preventing unwanted noise for clearer output in recording studios and entertainment space. Wide Compatibility: Available in multiple sizes to accommodate various sound components including bass boxes, mounted sound systems, and complete loudpeaker arrangements for versatile use. Simple Installation: Just place these cushion under your sound structure without requiring tool, easy upgrade for sound lovers seeking improved output quality effortlessly. Specifications: Component: Sponge Color: black Size: 300x170mm, 330x265mm, 390x300mm(optional) Size: approx. 170x300mm/6.69x11.81inch, 265x330mm/10.43x12.99inch, 300x390mm/11.81x15.35inch Package Includes: 1Pc Shock Absorbing Sponge Pad note: Other accessories demoed in the pictures is not included. Please allow 1-2cm errors due to manual measurement.