Blue Fireball's heavy duty Binocular-to-Tripod L Adapter is perfect for mounting any size binocular with 1/4-20 threading to a 1/4-20 tripod head found on photo and telescope tripods. The L-bracket is made of black anodized aluminum (unlike the cheaper plastic ones you may see on the market) and features two mounting holes so that you can adjust the position of the bracket/binocular on your tripod for better balancing.
The width is 1.18" (30 mm), so please ensure that the intra-ocular distance of your binoculars is greater than this when you use them.

