ChooeeBike V-Brake Pads, Bicycle 70mm Brake Blocks Set, 2 Pairs Universal Brake Shoes

These have a marking saying ‘for steel alloy’ on them; are they okay for Aluminum wheels?

Which size (55 or 70) is best for Cannondale Hybrid bike?

Will this work for 24 inches 6061 Alloy wheels for Cannondale bike?

Will these fit promax brakes? I doing a rebuild for a friend. The pad length is 45mm. Thanks