Baby Play Kits are designed for baby’s first 12 months of life: (0 to 12 Weeks), and Months 3-4, 5-6, 7-8, 9-10 and 11-12. There are 6 total Baby Play Kits. Toddler Play Kits are designed for toddlers 13-48 months old and are shipped every quarter (every 3 months). There are 12 Toddler Play Kits in total.