More information on the  Aluminum car ramp:

1.Safely load any four-wheel ATV or lawn tractor into your pickup or trailer

2.Folding design for easy storage

3.Constructed of aircraft aluminum with plastic-coated fingers 

4.Comes with safety chains for attaching to vehicle

Three types are available: 

1.Heavy-duty tri-fold 

69''*45'' open,15''W folded

1500lbs.Capacity

Q'TY of 40':504pcs

Item No.:713009

2.Extra-Long,Heavy-duty tri-fold,welded type

77'*50'' open,16'' W folded

1500lbs.Capacity

Q'TY of 40':504 pcs

Item No.:713010-M

3.Extra-Long,Heavy-duty tri-fold

77''*50'' open,16'' W folded

1500lbs.Capacity

Q'TY of 40':430pcs

Item No.:713010

aluminium car ramp