Free Shipping & Easy Returns! Explore Mont Blanc MB0291O Eyeglasses now. Mont Blanc MB0291O is a Full Rim, Progressive Eligible frame for Men, which is made of Plastic. Plastic frames can be strong, lightweight, and come in a variety of colors. Plastic is commonly used in performance or sport eyewear. This model features a Round shape, with a Single Bridge. This frame features regular hinges, which are durable and are easy to repair. Mont Blanc MB0291O Eyeglasses come with a cleaning cloth and protective carrying case.