From 0 to 6 months. Perfect position for baby. It keeps the back and legs raised. Build-in head positioner to keep baby’s head nicely round. Close space to reassure baby. Washable cover at 30° with two soft and airy materials. Micro granule-filled position roll. Shape memory foam. Fabric outside cotton/polyester, inside 100% polyurethane. Product dimensions: 58 x 38 x 8 cm.