Col Mountain Tech Optics Platform Black. It provides a stable connection to any standard tripod and attaches to gear using the universal 1/4?20 screw. While one Optics Platform comes included with every Mountain Stick owning additional platforms allows for faster transitions between gear setupssaving time when it matters most. Specifications for Col Mountain Tech Optics Platform: Manufacturer: Col Mountain Tech Color: Black Weight: 0.3 lb Dimensions: 1x2x1 in Features of Col Mountain Tech Optics Platform Compatible with standard 1/4in20 D-ring screws for easy secure mounting. Package Contents: Col Mountain Tech Optics Platform Col Mountain Tech ACCY-OPP-01: Optics Platform Black