Lens Collar Support Tripod Mount Ring for Nikon RT-1 Nikkor AF-S 300mm F/4E PF ED VR and AF-S 70-200mm F/4G ED VR -Bottom Quick Release Plate Feature Compatible with ARCA-SWISS 39mm Fit Ball Head Main features: 1.Made of aviation aluminum materials, CNC precision machining, anodized surface, with stainless steel screw, light weight hollow out design, net weight is about 160g; 2.Referring to and modified from Nikon original standard design, structure is enhanced, details are improved, and add the function of quick release plate, more practical; 3.Tripod mount ring?s inner diameter is about 68mm, using embedded flocking to increase contact surface; with three marks, convenient for lens rotation and alignment; fast spring lock, convenient for quick assembly and disassembly or adjust camera body for composition; removable quick release plate structure, reserved 1/4" and 3/8 " screw holes; 4.Suitable for Nikon AF-S 300mm F/4E PF ED VR and AF-S 70-200mm F / 4G ED VR lenses; 5.Quick release plate is AS 39mm standard, compatible with ARCA-SWISS / KIRK / WIMBERLEY / MARKINS / SUNWAYFOTO / KANGRINPOCHE / BENRO / SIRUI / MARSACE / ISHOOT ball head of Arca 39mm fit, suitable for IS-JZ30 / IS-JZ50 / IS- JZ64 / IS-QJ58 / IS-QJ64 / IS-JZ60BK / IS-JZ70MFT / IS-JZ80BK. Package Includes: : 1 x iShoot Tripod Mount Ring IS-RT1 (Note: The other items in the photos not listed here are for illustrating only, not included)

5. Quick release plate is AS 39mm standard, compatible with ARCA-SWISS / KIRK / WIMBERLEY / MARKINS / SUNWAYFOTO / KANGRINPOCHE / BENRO / SIRUI / MARSACE / ISHOOT ball head of Arca 39mm fit, suitable for IS-JZ30 / IS-JZ50 / IS- JZ64 / IS-QJ58 / IS-QJ64 / IS-JZ60BK / IS-JZ70MFT / IS-JZ80BK. 4. Lens Collar Support Tripod Mount Ring for Nikon RT-1 Nikkor AF-S 300mm F/4E PF ED VR and AF-S 70-200mm F/4G ED VR-Bottom Quick Release Plate Feature Compatible with ARCA-SWISS 39mm Fit Ball Head;. 3. Tripod mount ring?s inner diameter is about 68mm, using embedded flocking to increase contact surface; with three marks, convenient for lens rotation and alignment; fast spring lock, convenient for quick assembly and disassembly or adjust camera body for composition; removable quick release plate structure, reserved 1/4" and 3/8 " screw holes;. 2. Referring to and modified from Nikon original standard design, structure is enhanced, details are improved, and add the function of quick release plate, more practical; Suitable for Nikon AF-S 300mm F/4E PF ED VR and AF-S 70-200mm F / 4G ED VR lenses;. 1. Made of aviation aluminum materials, CNC precision machining, anodized surface, with stainless steel screw, light weight hollow out design, net weight is about 160g;.

Maximum Weight Recommendation: 160 Grams. Item Weight: 160 Grams. Compatible Devices: Camera. Brand: iShoot. Color: Black. Manufacturer: iShoot. Date First Available: October 8, 2019. Best Sellers Rank: #58 in Tripod Lens Mount Rings. Customer Reviews: 4.2 out of 5 stars 96 ratings 4.2 out of 5 stars. Item model number: ZP07-IS-RT1. : B07XQ5KX59. Item Weight: 5.6 ounces. Package Dimensions: 4.8 x 3.5 x 2.9 inches.