These are soft front foam tires for the Tamiya F-1 series cars.

Features: Soft compound (high traction)
Pre-trued
Ready for mounting

Includes: (2) Front tires
(4) pieces of double back tape for mounting
Instructions (for removing old tires and installing new)

Specs: Outer diameter - 55mm
Inner diameter - 30mm
Width - 35mm
Optional: Highly recommend tire glue (TRIC3504) in place of double sided tape.