TAMIYA is very well known in producing very high quality plastics. I had TT-01D which only a broken shock tower (A2 part) cause by heavy impact during bashing. I bought this Tamiya (#51002) A Parts (Upright) For TT01 for replacement. I have done a replacement part and left a lot of other parts unused. I keep them in my tool box for future replacement. What a cheap price for a set of spare parts like this! Excellent!