There are three designs, the first one features sakura and plum blossom flowers.
But if you want something with a more Cardcaptor Sakura theme, there;s one which features Kero and Spinel.
And finally, the third one features Sakura’s sealing wand, which features both the classic and clear card versions.
U-Treasure will be releasing these rings later this month via their store in Shinjuku, as well as their online store starting 29th April 2019.
source: Comic Natalie