Granite JUICY NIPPLE is a valve cap with extra function! You can use it to remove/install valve core in order to top up tire sealant, anytime anywhere.JUICY NIPPLE comes 7 different colorways. You can choose a pair of caps only or with two black alloy valve stems in 45mm length. Colour: Black, Red, Blue, Green, Orange, Pink, Gold,Weight: 2.5g (caps in pair) / 10g (caps with 45mm valves in pair).