Size 7 = diameter 17.5mm (Label size 17)
Size 8 = diameter 18.5mm (Label size 18)
Size 9 = diameter 19.5mm (Label size 19)
Size 10 = diameter 20.5mm (Label size 20)
Size 11 = diameter 21.5mm (Label size 21)
Measure across the flat part of the base of finger on one side only to approximate sizing as above
We only supply the ring in clear packaging, the colour chart can be sourced easily on internet images.