COMPATIBILITY: These Folding Tire Carriers are designed for your tire-carrying needs. Our models are universal in design, suited to carry 15 ? 16 travel trailer tires on your 4 square bumper. HEAVY DUTY CONSTRUCTION: Extra-thick & welded steel construction is worry-free for your utility trailers. Outfit your trailer with quality spare tire mounting. EASY TO INSTALL: This spare tire carrier with double-nut design prevents loosening, so you never have to worry about your tire falling off on the road. Our advanced tire carrier accessory makes it easy to install and remove the spare tire. PACKAGE INCLUDED: Complete with all mounting hardware and instructions, itfs ideal for vertical mounting of your spare tire to 4"square bumpers. PACKAGE DIMENSION: 19 inches x 10 inches x 7 inches WEIGHT: 10 lbs