Seems a bit odd, since they look exactly like the DP one's I bought off Rattler, which are identical to the Sparco ones.
Methinks an attempt at profiteering from Ca$oli??
I wouldn't be surprised if they all came out of the same factory
(Casoli / Ducati / Sparco all Italian....)
Which part do you need to replace? One of us could measure the part to check the size on DP / Sparco ones.