These cases are all made of corrosion resistant ABS with ultraviolet inhibitors. The rubber door seal protects against dust and moisture and the non-metallic hinges and latches prevent rust. You can customize these wall cases with the label kit. Small Yellow Case with Label Kit and 1 shelf: Exterior: 14"w x 9 1/2"d x 18"h, Interior: 12"w x 7 1/2"d x 16"h, Weight: 3 lbs. All Medium Cases with Label Kit and 1 shelf: Exterior: 14"w x 9 1/2"d x 21"h, Interior: 12"w x 7 1/2"d x 19"h, Weight: 5 lbs. 17 label titles include: BioSafety Products, Fire Extinguisher, Fire Blanket, Hearing Protection, Hand Protection, Maintenance Supplies, Safety Documents, MSDS, Personal, Protection, Equipment (PPE), Respirator Fit Test , Equipment, Instruments, Respirator Storage, Disposable Respirators, Lockout/Tagout, Safety Glasses, Visitor Specs, Spill Kit, First Aid.