This is the Hobby Products International (HPI) #4520 Low Profile|
Super Radial Tires Standard Width for Touring Sedans.
Radial tread and soft compound
Fits Touring type cars from Kyosho, Tamiya, Yokomo
and the HPI RS4 using standard width wheels
Standard touring car width
INCLUDES 2 tires
2 grey foam insert strips
2 1/2" (64mm) outside diameter
1 15/16" (49mm) inside diameter
1 1/16" (27mm) wide
Gluing tires to wheels
Writing on the sidewall says "Super Radial, HPI Racing, and Rotation"