Aviditi HD18645FOL Side Loading Corrugated Box, 18" Length x 6" Width x 45" Height, Kraft (Bundle of 5) These carton open along the ends for easy insertion of frames, mirrors and other flat products Manufactured from 275#/ECT-44 kraft corrugated Designed with full overlap (FOL) flaps for added protection Boxes are sold in bundle quantities and ship flat to save on storage space and shipping Measures 18-inches length by 6-inches width by 45-inches height