The single boot release system is suitable for mounting one boot on a slalom ski with rear toe plate, rear style half boot, HRT boot, or trick ski with rear toe plate. (It can also be used in a pair for jump skis, contact Mike for more information.) The single boot system includes the mounting plate with release assembly and one boot plate. (New 2020 G10 mounting plate and wider boot plate included, shown in first photo. No boot included, use your own.)