[Closed] Which yellow bleed block for Shimano M445 brakes?

Shortened my front brake hose last week, and then did a quick bleed just to make sure. Didn't have the yellow Shimano bleed block thingy so stuck a wooden peg in there instead - damn thing twisted and one of the pistons popped out - brake fluid everywhere, and lots of air inside system 😳

So, I want to get the proper yellow Shimano bleed block for next time I need to do a bleed, but can't find anything on the interweb under my brake model - M445.

I can find one here [url= http://www.slanecycles.com/shimano-spares-brm575-bleeding-spacer-p-9985.html ]Slanes M575 bleed spacer[/url] for M575 brakes, and seeing as the M575 takes the same pads as the M445 I'm assuming that will fit?

Can anyone confirm or otherwise? Thanks.

PS: Don't bother suggesting I ask LBS for one - it took them 3 months and constant pestering to come up with [i]one[/i] of the orange pad spacers thats supposed to come with the bike.