CROSSRC climbing car universal 2mm*10mm lock pin (4 packs) CS-97400425 MC4 HC4 GC4 MC6 HC6 XC6 KC6 UC6 MC8 BC8 PG4S PG4A PG4L PG4R PG4RS SG4 SR4 SP4 FR4 SU4 KR4 Applicable to all kinds of simulated climbing cars