?Safe Sport Rattle Toy Set?Made of baby friendly materials, these baby gym-themed rattles have rounded edges for safe play. ?Multi-stage Development?7 light weight gym rattles cater to babies' growth stages, enhancing auditory/visual/tactile senses, improving muscle strength, soothing teething discomfort, and boosting fine motor skills and hand-eye coordination. ?Fitness Enlightenment?Unique workout equipment designs, such as dumbbells, sparks children's interest in physical exercise, promotes parent-child interaction, and inspires fun family "sports activities" at home! ?Elastic Teether?These infant gym-themed teethers have diverse shapes and various textures to massage gums, alleviate teething discomfort, and soothe baby's emotions. ?Cool Gift for Training Lover?This exercise rattle set is suitable for little workout enthusiasts, making it a nice present for newborns, suitable as a birthday gift for babies over 3 months old, as well as for Christmas, Thanksgiving, Easter, New Year, Baby Shower and other occasions. ?Recommended Cleaning Method?Clean with wet wipes or damp cloth. Don't clean them W/ steam, or soak in water for too long.