Grow crystals come in 6 colors: red, green, blue, purple, yellow, and clear. Grow a beautiful crystal in 7-10 days with this fun and enjoyable crystal growing science kit. Educational Toys: Crystals are fun and easy to grow, and it's a great introduction to science. This is a perfect project, kids love exploring the wonders of science through hands-on projects. Spark your child's imagination, creativity, and scientific curiosity with a Crystal Growing Lab Kit. Playtime is about to be fun and fascinating with this DIY crystal kit, perfect for young science enthusiasts, this is a brilliant way for your kids to learn and have fun. This interesting science kit will make a great birthday, Christmas, children's day, holiday gift for boys and girls. Package includes: 1 x Kids Crystal Growing Kit