Womens Silicone Wedding Ring Band... https://www.amazon.com/dp/B01G66SKL2?ref=ppx_pop_mob_ap_share
I got a size 10 but it wasn’t as tight as the old silicone.
https://www.amazon.com/dp/B01G66SKL2?ref=ppx_pop_mob_ap_share
Size 9.5 for a tight fit, 10 for a looser fit
Sorry I don't know the actual dimensions.