This is a pair of Lockup ST 2.8 2WD Mounted Rear Tires in Chrome by DuraTrax.
Specs:
Tire Compound: C2 soft
Tire Diameter: 4.2" (107mm)
Tire Tread: Rectangular and wedge shapes, off-road
Vehicle Type: Monster truck
Wheel Color: Chrome
Wheel Diameter: 2.8" (71mm)
Wheel Hex Size: 12mm Hex
Wheel Type: Split 6-spoke composite plastic
Wheel Width: 1.9" (49mm)