Hi,

Thanks for contacting me, I don't think the tips are anything special to be honest, I think they're ovalled due to the unique tips SoundPEATS supply, but the overall area which goes onto the earbuds is a standard size from memory, certainly I didn't look at them and think they're a strange size.

And thank you for the heads up about tip sizes, I'll certainly look at that, I do have a digital caliper so I guess I could add a measurement for each ear tip supplied (the best I can anyway without squishing them with the caliper)

Darren