The Unity Tactical SARA Kit with ESS Studs were derived out of a need to directly attach Sordin Arc Rail Adapters (SARA) to an end user's helmet. Rather than reinventing the wheel, the SARA calls on the spring tension generated by the Unity MARK rail adapters to achieve proper seal around the users ears and seamlessly integrate into the user's head borne system. Lightweight, streamlined and designed with the simplicity and strength demanded by the end user, the SARA eliminates the headaches and discomfort associated with wearing headband style ear pro inside the helmet. FeaturesIncludes ESS studs for compatibility with both Over The Head (OTH) and Behind The Head (BTH) systems.Compatible with MSA SordinIncludes 2 ESS Mounting Studs, 4 mounting set screws, and 4 Unity SARA adapters1.0x 7.2x 8.0 in dimensions