HYTHU-Advent Calendar 2025 Science Kit Toys for Girls Boys Countdown Calendar Gifts S-T-E-M Science Experiments with 24 Cool Experiments Christmas for Kids Gifts

24-Day Advent Countdown Calendar: Unwrap a new science surprise every day from December 1st to Christmas! This surprise box calendar turns holiday anticipation into hands-on learning, with 24 unique science experiments hidden behind numbered doors. Safe MaterialsMade with safe, non-toxic, harmless and eco-friendly components, the experimental props are simple and convenient. Parents can trust the quality while focus on fun and learning. Package Dimensions:13.03 x 9.92 x 3.03 inches|Item Weight:2.42 pounds|Item model number:SZ-5973|Manufacturer:Tymokcall