Review on Enhance Your Baby'S Gross Motor Skills With 4 Vibrant, Textured 4" Edushape Sensory Balls For Babies Aged 6 Months And Up - Trendy Colors Pack Perfect For Optimal Developmental Playtime by Michael Persing

These are great. I gave them to my 10 month old granddaughter for Christmas. She likes them and has no trouble gripping them, but of course uses them primarily as a chew toy for now. Most of the time it's my seven year old grandson who plays with them. We even toss them back and forth, making up rules as we go: We have to catch and throw with only one hand; I have to toss it in front of him so he can dive to catch it, etc. They're easy to grip, so even with my arthritis I have no trouble catching them one-handed. Nice, sturdy toy!