Varying sizes in the multi-coloured ones but biggest only approx. 5 cms. The branch contains older fungi of much darker colour and I'm not sure if they were alive. They were much bigger than 5 cms. Thin and leathery. Last photo was taken weeks later of the same fungi.
Great set of images showing both the upper and lower surface of these fungi plus an image of them in their more aged state. The common name for these is 'Turkey Tail'!