This pop up toy made by very durable materials. The surface of the material is very smooth. Your baby will not get hurt during play. The Bright colors and cute animals can attract baby's attention. Baby like pressing buttons of different shapes and colors. They also can learn number 1,2,3,4 by it. You can use it without batteries if you think the music is loud, it will no music when pop up, this will not affect the interaction between your baby and it. It can improve the fine motor skill which it's very important for early childhood. It let your baby start a journey of exploration and discovery. It's a suitable toy for 6 months up.