Tummy time inflatable water play mat
selling over 10K per month on Amazon

Tummy Time Newborn Mirror Toys,High Contrast 3D Activity Montessori Soft Crinkle Foldable Sensory Toy

Inflatable Dinosaur with Instant Bounce Back Movement Package / Inflatable Punching Bag for Kids Bundle - Bop Bag Inflatable Punching Toy

Baby Play Gym & Activity Mat, Oversize Leaf Shaped Baby Play Mat w 6 Detachable Toys, Tummy Time Mat Promote Motor Skills & Sensory Development Mat

Pool Floats Kids with Water Gun Mermaid Pool Toys for Kids Ages 3-8 Toddler Pool Float for Kids Girls Inflatable Pool Water Toys for Swimming Pool Beach and Water Party

For baby playing/ Arouse the baby's curiosity/Encourage baby to explore the world/Train baby's sensory abilities