[ronnie paton]

need some has i keep losing mine, they are the quick release ones that come in different colours  for different pressure.

[steve_doyle]

pete at valetech,

through his ebay shop "high pressure designs".

[dandandan]

I`ve lost a few when there not pressed in properly and fly off into blue yonder,i paid about £2 i think off merrill fox,they were here in 4 days,red,yellow,white and black