The cold massage roller ball is our regular product, so we can send you some free samples if you need to check our quality. You only need to bear the shipping cost. It’s only a tiny parcel and will not cost too much.
All of our massage roller balls can meet the standard of America and Europe. They can pass most tests, such as CE, RoHS, CA Prop 65.
As a factory since 2002, we can have some cases for your reference and hope they can do some help.
(1) Some customers buy a set of two, one big and one small.