The Novoflex Q=Mount Mini D Quick Release Base is designed for use with smaller camera systems, and provides excellent support for cameras and accessories. It's ideal for use with the Novoflex Multi Media Rack system, and can also be used with all conventional tripod heads or other mounting devices with a 1/4" stud. This manual QR adapter has a safety pin (works with Novoflex plates only) that keeps the plates from slipping. The clamp width is 25 mm.