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 stable platform with greatly reduced shake. This is really helpful for 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.