Welcome to our store! 1, Never Gets Wet: The sand is poured into the water and taken out again. It's still dry. There is no water at all, which will surprise the audience! 2It's More Fun: It's a new way to play sand in water. Use your imagination! Greatly enrich one's mind! A powerful and unlimited style. 3, Endless Possibilities: The play sand toys can be used to build underwater castles! It's great fun for kids and even adults. 4Reusable Science Toy: Build sandcastles underwater, then simply pour off the water and let the sand dry! You can use it for scientific experiments. 5Learn About Water Molecule Properties: Discover the colored sand and real sand for a fun science experiment or lesson! Also suitable for aquarium landscaping! Item Type: Play Sand Product Material: Sand Product Weight: Approx. Net weight 50 g / 1.8 oz (the error of 2 g up and down is within the normal range) Applicable age: 14-18 3C configuration category: Toys over 14 years old 1 bag x sand Customers are our top priority. If you find any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best after-sales service.