Custom First Aid, Plush Heart Hot Cold Pack - Microwaveable & Pearl Bead Tech, One side is covered with ultra-soft, plush material Slip hand under elastic strap on "plush" side to hold in place Innovative "Pearl Bead" technology delivers warm and cold therapy without any mess 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 Use instructions printed on item ... #WHF-PH15 $2.62/each.