Meooeck 2 Pcs Peanut Ball 39 x 20 Inch and 31 x 15 Inch Peanut Exercise Ball Peanut Balance Stability Ball Yoga Ball Chair Flexible Seating, Green and Blue, Include Pump

I purchased this because I have two very energetic toddlers that need a way to expel their energy. We have a trampoline, but they were still bouncing on the couch back, and this has helped them transition from destroying our couch to rolling and bouncing on the peanuts. They are the perfect size for my 2 and 3 year olds and are very sturdy, as my husband and I have used them to provide support to yoga and stretching. They are lightweight, so my kids can pick them up and move them around the room without support, and I honestly don't have a negative thing to say about them!

I bought this to use with my dog in a pup-lates class. It seems sturdy, not a thin material. I use it for myself and roll my back across it. I think its going to last.