1. The tripod mount ring is referring to Canon original TMR D (B) design, with precise all-metal     material processing and surface hardening treatment, fine and smooth, wear-resistant; inner     diameter is 68mm, made of Aluminum Alloy, sturdy and durable; there is flocking at the     junction to the lens, combination close without gaps.
2. The lens hood is made of pure ABS materials, once molding, multiple baking paint both inside     and outside, precise clip edge, completely in original style; black flocking inside, block     unwanted light and does not produce vignetting, can be easily assembled and disassembled.

Canon EF 100/2.8 L IS USM Macro

1 * Tripod Mount Ring IS-TMR
1 * Lens Hood for Canon ET-73
1 * 67mm Front Lens Cap for Canon