The optional Caulk Tube Attachment for Utili-Guard+™ flammable cabinets allows safe, organized storage of up to seven caulk tubes or similar items (2" diameter each) right on your cabinet door. Built from durable steel and measuring 3.4” high x 17.7” wide x 2.9” deep, this lightweight 1.9 lb accessory installs easily to your flammable cabinet’s pre-installed door brackets—no tools required. All door attachments for Utili-Guard+ flammable cabinets are fully interchangeable, so you can mix and ma