Rock Solid Master Articulating Arm + Clamp Kit Kit Contains: Rock Solid Master Articulating Arm, Rock Solid Master Clamp, 5/8"(16mm) Baby Stud, with 1/4"-20 Male Thread, Wedge Insert for Securing Clamp to Flat Surfaces Load Capacity up to 9.75lbs (4.5kg) Arm is compatible with Baby 5/8" (16mm) receptor Tether Tools Lifetime Warranty All other items pictured sold separately.