The Acebil is a combo package that includes the VST-14 and ST-1. The VST-14 base plate is used to mount the Sony VCT-14 tripod quick release adaptor with Sony professional camcorders. The ST-1 quick plate is a designed to mount handheld camcorders on a quick tripod plate. This plate is designed to work with the LS-750GT, LS-750 and LS-700 camera adaptors, the LS-850GT and the LS-800 base stations and the HDS-300 studio build-up unit.