Width: 3" (75 mm), 3 inches or 7.5 cm is quite wide for a belt, please consider this with your order.
Sizing: this belt size is measured from buckle fold to the center hole, the third hole from the tip end, order about 2 inches larger than where you will wear this belt, e.g. 26" waists take Size XS-28" belt; if your waist is 33~35", opt for a size M/L-36" belt.