I've very seldom been able to peel hard boiled eggs. It always sticks like cement to the egg white. Some people can do it so it just slides off...not me. I've tried plunging then into cold water after cooking, I've tried letting them sit and cool slowly out of the water. I've tried fresh eggs, old eggs...
So let me know if they work. I wouldn't mind spraying the heck out of the containers to keep them from sticking. But I'd probably wait and buy them when I had a coupon for Bed Bath and Beyond.