This 4-shelf display tower that is quick and easy to assemble or disassemble. Four 3/16" thick tempered glass shelves feature pencil polished edges. The 13mm seam-welded heavy gauge steel tubing is connected with 90 degree die-cast metal- alloy connectors. Additionally, overall dimensions for this unit are 18 7/10" x 18 7/10" x 52" (W x D x H), with 15" between shelves. This 4-shelf display tower is great for displays at trade shows, exhibits or even as a permanent store fixture.