Customer ratings

does not exactly match the diameter, is slightly overhanging at the cut edges.

no screws, stupid

Well, now it comes out that the 3 parts actually come WITH 3 Allen screws! But that's all positive.
What is absolutely incomprehensible is the fact that the 3 parts have no dimensional accuracy and do NOT fit completely into the propeller groove, so they protrude approx. 2 to 3mm around the entire circumference. That hasn't happened before! Certainly not a good feature for sailors with regatta ambitions (to win). The product should be exchanged or removed from sale. Does the manufacturer have no service?
I can't enter anything in the question line about my yacht shipyard because ETAP and 30i are not provided.

After years I needed new propeller anodes made of Mg for my Etap30i Saildrive. I was somewhat surprised to find them after a considerable amount of searching (due to different names for sacrificial anodes on the SVB website). After dismantling the worn remnants of the propeller shaft and removing the oxide residue, I now found that the outer diameter is approx. 2.5 mm larger than the outer diameter of the saildrive. And now? Should I also grind off the expensive magnesium now? You should definitely expect dimensional accuracy in a professional online trade!
By the way, 3 stainless steel screws are included in the year 202324!
Another thing, there used to be a shipyard called Etap, the boats can still be clearly seen on the water, so why can't you choose Etap??

There is a 5mm gap between the screwed-on sacrificial anodes. The originals are a little longer and I would have preferred them. Barnacles can now settle there.

I ordered earlier this anode type for a 3 blade folding propeller for Bavaria 31 cruiser boat. I thought same will come but I received a Made in China product (Made in Italy in the ad) for a bigger boat it says for D2-55A etc. No real customer support despite several emails sent before ordering.. Could have avoided this situation if customer service was in place...

Large gaps, doesn't lie fully, sticks out.

Very bad fit to Volvo's 3 bladed propeller hub. the three sections together are not circle round but more "triangular". A lot of the Zink mass sticks out of the propeller hub and will cause frictionturbolans and bad protection for propeller hub