BPA FreePerfect Size for Baby's Hands & MouthProtects Delicate Primary TeethPromotes the Early Development of Good HygieneMeets CPSC Safety Requirements Stage 1 - Extra soft silicone massager and gum cleaner for delicate newborn gums Stage 2 - Soft gum massager for older gums and newly emerged teeth Stage 3 - Massages and helps clean gums and teeth during the teething process Stage 4 - Soft nylon bristles gently clean baby's new teeth. The Dr. Talbot's Oral Care Set promotes the early development of good dental hygiene. The soft materials and bristles are designed especially with a child in mind. The result of this special attention to detail is a product you and your child can use with ease. Stage 1 allows parents to brush and massage gums gently, while stage 2 massages and helps gently clean as teeth begin to emerge. Stage 3 massages and cleans during the teething process. Ask your doctor or dentist about when to switch to the soft nylon brush (stage 4) once teeth begin to grown in fully. The stage 4 bristle design provides a smooth transition to big kid brushing All Dr. Talbot's products are made of safe, durable materials and exceed all government safety regulations and standards.