Manfrotto R4190.21 Ball Lock Knob Assembly

Mount a laptop or projector to your Benro tripod. Comes with a securing strap & safety lip on the outer edge. Can support 13 & 15 inch Macbooks.

The 3LT Lever Clamp is a universal dual stage lever mechanism for Arca Swiss compatible release plates. Compatible with our AirHed Pro and AirHed Vu, the Lever Clamp is adaptable for left and right hand use, and adjustable to fit different plate profiles. Features two security hollows for compatibility with Arca-style release plates that have security pins. The Lever Clamp can be also attached directly to any 3/8″ thread device.

It is compatible with our AirHed Pro and AirHed VU.

• Arca-Type Compatible
• Adjustable Camera Screw Channel
• Rubberized Anti-Twist Surface
• Dual 2.5mm Safety Screws
• 1/4″-20 Stainless-Steel Camera Screw
• Integrated Strap Loop