ESD CAGE : ESD Safe, Consist of : - DR2448 Side shelf, Chrome-plated, 24"x48" - SC2448 Wire shelf, Chrome-plated, 24"x48" - SC63 Post, 63" - KS3 aluminum sleeves - with 4" ESD castors (2pcs with brake) Also available in size 24"x36, 24" x 60".