2023 Christmas Countdown 2023 Christmas Countdown is an exciting time for everyone, and the secret to raising happiness is using our DIY Crystal Slime & Supply Kit for the 2023 advent calendar! Enjoy a perfect Christmas holiday by getting these surprises. Slime Advent CalendarSlime Christmas 2023 Advent Calendar with DIY Crystal Slime & Supply Kit - 12 different crystal slime and 12 different decorations are toys and gifts for children to bring Christmas Advent Calendar surprises. Advent Calendar for KidsThe countdown to Christmas is almost as fun as the holiday itself, and with each passing day, your child's excitement escalates with the arrival of Santa Claus. Slime advent calendar for kids, it will bring your kids more endless fun, stretch Slime, squeeze, poke, squeeze, rotate, use different decorations to create a variety of novelty styles, share with kids' friends and enjoy the happy party time of Christmas. Premium QualityOur kids slime advent calendar is made of high quality TRP, which is safe for both children and adults. Warm Tips Due to the transportation time, the crystal slime may lose moisture, in order to get better ductility, it is recommended to add a small amount of warm water to the crystal slime before use, which will make the crystal slime more elastic and can enhance your game experience.