These sinks are handmade, pretty easy in use. of course these beauties need some care: - clean with a gentle soap - wipe dry after use - if stains appear, try to clean with a gentle soap and sponge, if this doesn't work, you can use a steel sponge and use it gently, afterwards polish it with copper polish - to keep it shiny, apply copper polish every 6 weeks. measurements : 40cm ( 15.75 inches ) ( if you need another size contact us)