Made of high-strength, lightweight ABS plastic, the BOG Binocular Rest fits most brands of binoculars ranging in size from 7x to 20x. Includes a 3/8in-16 thread and 1/4in-20 size bushing and a Switcheroo System stem for mounting BOG platforms. Size: approximately 3 1/4in deep x 6in wide x 3/4in tall.