The VTech Sit-to-Stand Learning Walker in blue is a developmental toy designed for toddlers aged 9 months to 3 years. This interactive walker encourages creativity and motor skills while providing a safe transition from sitting to standing. Made of durable plastic, the walker features a unique design that allows children to explore and learn while on the move. With its unisex appeal and frustration-free packaging, this toy is a great addition to any toddler's playroom.