It is attached to 15mm short rod(1.5'', 2'' & 2.5'' optional) for height adjusting on a quick release railblock. There are two rubber washers to protect the finish off of your lens from wearing. The lens support fits lenses diameter range for 50mm to 140mm.
Material: Aluminum Alloy, Rubber
Includes: 1x Lens support
Specifications: Net Weight: 22g