Premium Plush Eye Mask features reusable, pliable and non-toxic aqua bead gel therapy pack and strap that has adjustable hook and loop fastener. Simply microwave for warm therapy or freeze for cold therapy. CPSIA and Prop65 Compliant, FDA Certified and TRA tested. Safety reports for Pearl beads are available upon request. Reusable and easily cleaned with mild soap and water. Use instructions printed on item.