The BA-2 Binoculars Adapter from Sirui is a versatile accessory that easily mounts your binoculars to a tripod head with an Arca-type receiver. Made from lightweight aluminum, it has a hollow design for reduced weight while maintaining the capacity to support binoculars weighing up to 5 kg. The 1/4"-20 threaded adapter can be left on the binoculars indefinitely, in order to mount them to the BA-2 in just seconds. The Arca-type base has two safety screws to prevent the plate from releasing from a receiving clamp prematurely. A magnetic Allen wrench stores inside the adapter so it is always on hand when needed.