This is a pair of 1.0" BFGoodrich T/A KR3 Tires made by RC4WD.

Key Features

Officially licensed by BFGoodrich
Advanced X2S³ Compound 
Fits 1.0" Wheels

Included

4 tires and inner foams

Specs

Outer Diameter: 1.98in / 50.3mm
Width: 0.72in / 18.4mm 
Inner Diameter: 0.95in / 24.2mm 
Each Tire Weigh: 0.35oz / 10.1g