I've been researching the legs of JR21 Thunderbird 2's of late, you know, the retractable part metal/ part plastic rods with those cute button feet.
As far as I can tell there are two colours, red and white.
Having read up on the subject in various places, it would appear that the red ones were released with the HPM version of the toy - thats Herts Plastic Moulders i.e the initial and UK version [the one later partly filled with sweets 'cos they couldn't source the friction drives!]
HPM then lost the contract to a Hong Kong factory and the resultant JR21 logo'd [2 versions of logo positioning] Thunderbird 2 had white legs.
Is this your understanding readers?
Which one have you got?