These tall corrugated boxes are end loading for easy insertion and sealing. may be used in place of mailing tubes ideal for shipping irregularly-shaped items, such as golf clubs, shelving, fishing rods and umbrellas boxes are manufactured from 200#/ect-32 kraft corrugated material sold and shipped in bundle quantities of 25 the dimensions provided are the inside dimensions of the product for help selecting the right box, click the brochure tab below.