The adapter attaches to heads or other support equipment using available 3/8 screws. The QR system features a safety catch to help prevent accidental release of the plate. The included Touch and Go Plate 16 features one 1/4"-20 & one 3/8"-16 captive camera tie-down screws.The item "Sachtler Sandwich Touch and Go Adapter with Touch & Go Plate 16" is in sale since Thursday, June 7, 2018. This item is in the category "Cameras & Photo\Tripods & Supports\Tripods & Monopods". The seller is "allenscamerashop" and is located in Levittown, Pennsylvania. This item can be shipped to United States.