Montessori Learning Toys for 1 Year Old Girls Boys, 3 in 1 Baby Busy Toy for Toddlers Educational Gifts for Kids 1- 3 Girls boys. We design Montessori toys to improve the knowledge and skills of 1 2 3 year old girls boys. Our original intention of designing toys has always been to educate and entertain. This Montessori toy integrates a number of games to exercise children's fine motor skills, which can greatly improve the hand-eye coordination ability of toddlers boys girls aged 1-3 years old, and comprehensive common sense cognitive ability. Our original intention of designing toys has always been to educate and entertain. This Montessori toy integrates a number of games to exercise children's fine motor skills, which can greatly improve the hand-eye coordination ability of toddlers boys girls aged 1-3 years old, and comprehensive common sense cognitive ability.