1.rc car foam tire 2.Material:NBR+PVC foam 3.Durable,safety,anti-skidding 4.Good for toy rice car 5.black,blue, ... soft,smooth,light,safety,Skid-resistant function,weatherproof,anti-shock,anticollision.This RC tire can be use in baby racing car,its good ... babystroller.Durable,safety,wearproof,anti-shock,anti-skidding,anticollision,soft,light.Size:inner diameter 9cm,outter diameter 11.5cm(customized size ...