These are just the sleeves, in the same blue silk as Claudia's gown and trimmed with sequined lace.
You will see some clipping in these sleeves, depending on the pose, so try before you buy.

PRODUCT INFO:
Bodice, Skirt and Sleeves: ~N~ Claudia's Silk Gown
Eyes: ~N~ Aquamarine Anime
Hair by Koze
Skin by CannibalCreations
Head by PVC