These are Tamiya tried and proven plastic cylinder C.V.A. (Constant Volume Adjustable) shock dampers. They come standard in many of Tamiya's R/C kits, but can also be purchased separately to upgrade kits that come with friction shocks as standard.

Compatible Chassis:
M-07
M-06
M-05
MF-01X
TA-05
TB-03
TT-02FT
TT-02
TT-01