This binocular tripod adapter cradle tray from Hammers is made of lightweight molded polymer frame with a wide elastic rubber tie-down strip. It allows you to use your binoculars mounted on a tripod for extended watching to eliminate fatigue and offer a much more stable platform with greatly reduced shake. This tray really helps when using with laser range finding binoculars for reliable reading at distance. Good for use with most mid to full-size binoculars. There is a ¼-20 camera thread at the bottom to connect to quick plate or ball head of camera tripods or window mounts. Measures 7inch wide and 3 1/2inch deep. Rubber tie-down strip is 1 1/4inch wide. Weight of cradle tray: 3.8oz.