This is great for the development of crucial skills which is why it's important to make sure as a parent you support and encourage playtime, lots of it, imaginative play in particular as it offers all kinds of experiences.
Other than being realistic, the mailbox is fun even for parents and it's the kind of toy that offers the chance for parents to join up the play too and bond more with their children, so it's that sort of play that allows for as many participants as you, or rather your child, imagines. Yes, sending letters is still in style!
This is great because children learn from us, they copy us in the way we speak as well as the gestures we make so don't be surprised if you see your little one impersonate you or immediately says a phrase overheard on TV. Along with the new words he or she gets to learn, fact is social skills are also being improved.
Since it's imaginative play, the toddler mailbox opens up the possibility for your child to act up as a postie, a person sending a letter with pretend letters and stamps, having fun first writing the letter (this is ideal play for learning the alphabet and how to write!), wrapping it up, stamping it, or the person receiving it.
You won't have to worry about the toy itself because it's made from eco-friendly materials such as wood, and the paints that are used to colour it aren't toxic. Since wood is a durable material, you have years of fun guaranteed.
If you still aren't certain there's much to imaginative play, have in mind there are other benefits you might not be aware of, like cognitive thinking, development of emotions, interaction with others as well as problem-solving - all crucial aspects of life.