Features: -Perfectly suited for babies who put everything in their mouths, the sensory ball will help them relieve gum pain associated with teething, while helping to stimulate their sensory awareness -The sensory balls are made of an eco-friendly, tough and durable beech wood orb with antibacterial and hypoallergenic properties and a food-safe, non-toxic, chemical-free silicone ball -Use under adult supervision -Wash with a damp cloth and mild soap without soaking