It is for 42/44/46.

The "Milanese Loop (stainless steel)" wristband from Apple fits most Apple Watch models. The size of the smartwatch is relevant, as the strap is available in different sizes to cover different wrist circumferences. The wristband is suitable for wrists with a circumference of 130 to 180 mm. It is compatible with various Apple Watch models, including the 42 mm and 46 mm versions.

Yes, the "Milanese Loop (Stainless Steel)" from Apple is compatible with the Apple Watch Series 10 in 46mm. The Milanese Loop bands fit the various Apple Watch models, including the 46mm size of the Apple Watch Series 10, as long as the size of the watch case matches.

Yes.