Best prostate attachments for Hismith

I’m a guy who is very much into playing with his butt. Until recently I had a cheap Auxfun sex machine but it broke. That machine really struggled with power and holding angle, plus the suction cup feet never really worked. Despite all that I did like it. From what I hear the Hismith premium is better in just about every way. While I can barely believe it myself, I am seriously considering spending ~$700 on a sex toy.

For those of you in the know what are the best attachments that it has for prostate stimulation?

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