Zoggs swim trainer seat zoggy 12 18 months is a great way to get your little one used to being in the water with a safe and comfortable seat and pillow back support your baby will feel safe and protected in the water and able to move his arms and legs around freely your child will feel happy and confident in the water as the swim seat allows them to float in the water without their upper body39s being submerged much easier to scoot them around in the water too size 12