Type: Radio-controlled car Manufacturer: Tamiya [Used] These are Tamiya radio-controlled car tires. Medium Narrow Racing Radial Tires x 2 sets Fiber Molded Tire Hard (Inner Sponge) x 1 set M-Chassis Super Radial Hard Tire (Inner Sponge) x 1 set M-Chassis M-Grip Tire (Inner Sponge) x 2 The tires have no wheel cracks, so they can still be used for practice. How about using them for practice in the Tamiya Grand Prix, etc.?