SUNWAYFOTO MP 100mm Rail Nodal Slide Arca Compatible Clamp DMP-100 Sunway SUNWAYFOTO brand Arca-Swiss compatible Accepts QR's from RRS Wimberley, Jobu, Arca Swiss, Kirk, Markins, etc. Multi-Purpose Rail Nodal Slide DMP-100 w 40mm Clamp Double Arca Dovetails Precision machined from solid aircraft-grade aluminum