Quality wooden castanets bound with elastic rope have long quality of life. Smaller design is specially made for small hands. Recommended for ages 3 and up. Kids will have fun playing with these while also learning about music and tempo. 2.5 inch diameter. Constructive Playthings is committed to providing safe, compliant products and a healthy, safe working environment worldwide. Constructive Playthings fully complies with the CPSIA and works closely with our suppliers and third party, CPSC approved laboratories to ensure we meet regulatory requirements. We require that all products meet all applicable federal regulations, which we review on a continuous basis.