Science & Exploration Sets features: Are you still worry about there is no safe and multifunction plaything to your baby's ability? Our product will solve your problems. Made of high grade quality material, the building rings stacker can help your children to play and learn. Hurry up and keep our pace, adding this adorable toy into your shopping cart. Features-Color: Assorted Color-Material: Plastic-Size: 15.00X15.00X22.00cm/5.89X5.89X8.65inch -When your baby play this toy, this toy will sing and brill, can exercise your baby's vision and hearing ability.-This building toy come with 5 different color and size circles that is very cute, they can stacking circle toys in anyway they want.-Order this lovely and creative toy for your little one or as a thoughtful gift for a close friend, and you can be sure to win their appreciation -With different surface design, will kid's entertainment, at the same time, promote their brain development such as touching ability. -The best choice for your baby to your baby's chewing ability, made of food-grade material, this toy suitable to use before you prepare to add solid food.