Cooper Discoverer STT Off-Road Radial Tire - 35/12.50R18 123Q Armor-Tek3 carcass construction for superior resistance to impact breaks and bruising. Scalloped shoulder lugs offer superb traction in soft surface applications and additional gripping power in off-road applications. Resistant tread compound rim flange protector helps resist the cutting, tearing and chunking commonly developed in extended off-road applications. Super traction tread creates a bold, aggressive tire for tough off-road applications. Tapered stone ejectors help prevent stones and debris from lodging between the read elements while enhancing overall soft surface traction.