iShoot Improved Lens Collar Tripod Mount Ring for Nikon RT-1 Nikkor AF-S 300mm F/4E PF ED VR & AF-S 70-200mm F/4G ED VR, Bottom Quick Release Plate Feature Compatible with Arca-Swiss 39mm Fit Ballhead sound Diamond needles are made of

Diamond needles are made of high-quality ABS plastic and aluminum

Fast and convenient - a durable carabiner lets you clip your camera to your backpack

Note: This is not similar in size to the original Manfrotto Super Clamp

Strongest effect when used at a 90 angle from the sun

iShoot Improved Lens Collar Tripod Mount Ring for Nikon RT-1 Nikkor AF-S 300mm F/4E PF ED VR & AF-S 70-200mm F/4G ED VR, Bottom Quick Release Plate Feature Compatible with Arca-Swiss 39mm Fit Ballhead sound Diamond needles are made ofiShoot Improved Lens Collar Tripod Mount Ring for Nikon RT 1 Nikkor AF S 300mm F 4E PF ED VR & AF S 70 200mm F 4G ED VR, Bottom Quick Release Plate Feature Compatible with Arca Swiss 39mm Fit Ballhead Tripod Mount Ring, CNC Machined RT 1 Replace Lens Collar for Nikon AF S 70 200mm f 4G ED VR and Nikon AF S 300mm f 4E PF ED VR Lens, Built in Quick Release Plate for Tripod Ball Head of ARCA SWISS Fit Main Features: 1. The lens collar is made of aviation