JessJess385201,
Unlike any brand of hook & loop tape, buttons need testing under the CPSIA. So if you can not get your suppliers to "cough" up the properly formatted GCC or current lab test results for non-exempt supplies with the lead (& if your products need it phthalate) levels in PPM then you will need to have your supplies tested at your own expense if you choose to market, describe, or picture your items as being for children under 13.