Designed to accommodate today's larger front panel format marine radios as well as older DIN style and post mount. Made from heavy wall ABS plastic. It has room for all the accessory cables found on the newest radios. Can be installed overhead or under dash. Mounting hardware included. Accepts PolyPlanar and most other brands of stereos, including Sony, Jensen and more. Size 11.86" W x 10.45" L x 4.323" H