MaterialEach piece of cute duck is made of safe and non-toxic material. PLEASE NOTE: There may be big ducks or small ducks in each space, or accessories that decorate the ducks, which will give you a lot of surprises every time you open them.Christmas Countdown CalendarFrom December 1st to Christmas, there is a special number every day, each with a different gift. From December 1st, I opened the window and found beautiful gifts. Every day after December 1st, you will discover a unique charm. Christmas is here when you open window 24. This is a unique and Christmas countdown calendar.DIY Parent-Child ActivitiesThis Advent Calendar is a festive way for your kids to count down the days from Advent to Christmas. Christmas is almost here when you see this box. This is a special Christmas gift for kids. In this special December, play with them, design together, and gain more affection.Christmas GiftThe advent Calendar is a great gift for your family, make your child look forward to opening the door every day. 24 days are recorded digitally, with each date corresponding to a door you can open and take down the novelty rubber duck. It also means that Christmas is just around the corner, full of tension and joy.