tread must be no less than 1.6mm
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I suppose "Toes must be no less than 1.6mm apart" will fit for this use? Yes? No?

Also, as I like keeping everyone informed, the #1 print auctions are ending today :-

"Chasing The Dream"
"Rather Ill Tempered"

News

There is, at this time, no news.
Which, if you listen to some people, is good news.