What are the dimensions of PB100100?

Product Description: 1962-1974 GM; Rubber Dust Boot; Rear; for Delco-Moraine Power Brake Booster

Measurements:

Base - 2 7/8" Outer Diameter & 2" Inner Diameter

Top to Bottom - 2 3/4" long

Holes - 3/8" diameter

PB100100