Comic Guarantee LLC, also known as CGC, is the newest trend for comics' collectors to grade and maintain the collectible value for their most highly prized comics. Now, collectors have a new, convenient way to store and transport their treasured graded comics with theGraded Comics Storage Box! These strong and durable boxes can withstand over 200 pounds of pressure, and are tall enough to fit CGC-graded books in their plastic cases. Each box can hold 28-30 CGC-graded comics. Each box measures 15" x 8 ½" x 13".