Flat Head Screwdriver Slot on the Front when coupled with the flat head screwdriver slot on the front of the knob, which allows the adapter knob to be tightened down enough to securely hold the binocs in place. As long as the nylon or plastic material used in the knob will hold up under repeated mounts and dismounts, the SV111 adapter will be the class leader
It came with a Flexible O-ring it will not scratch your binoculars,would stay on the screw threads tighten;the attachment screw was 3 threads;get enough bite into binocular mounting port. made it secure; non metallic washer or rubber brush that keeps it tightly against the binoculars when you tilt binoculars slightly side to side. the O-ring which keeps the screw locked in place against binocular
Fully Metal Tripod and Small Size This is good for high power binoculars, button screw can lock it to hold heavier thing;super binoculars which are difficult to hand hold, Small size is a big advantage for binoculars with limited space between barrels. And the screwdriver slot in the tightening knob makes getting it snug pretty easy
Specification: Model: SV111 Type: Tripod Adapter To Fit: Binocular Telescope Cap Nut of Diameter: 12mm Screw Size: 1/4 inch Length: 3.54inch / 9cm
Package Includes: SV111 Binocular Tripod Adapter