The BCW Graded Comic Bin is a heavy duty comic box made from acid-free, reinforced, snap-together panels. The Graded Comic Bin holds about 30 graded and slabbed comics and includes a movable partition that helps stand up your growing stack of comic books. Identification slots on the ends help you mark your boxes with either a 3″x5″ index card or a toploading card holder. The lid panels feature sliding locks for added security. Additional Graded Comic Bin Partitions are available separately. Heavy duty, acid-free plastic. Stack up to six high. Includes one black Graded Comic Bin Partition. Interior Dimensions (WxHxL): 8 3/4 x 13 1/4 x 15 1/2. Exterior Dimensions (WxHxL): 10 7/8 x 14 1/4 x 16 1/2.