These work great & do NOT damage hair!
I use the smaller rollers on my toddler's very curly hair to make a sleek bun "like a ballerina" for her.  They work great, stay in long term, & most importantly they don't damage, pull, or break her hair coming out.  I haven't used the larger ones yet but I will for an upcoming wedding.  I expect no problems based on our experience with the smaller ones.
Rating: 5 stars