Simply microwave for warm therapy or freeze for cold therapy, Double Safety Tested: CPSIA, FDA, and TRA (Toxicological Risk Assessment) . Safety reports for Pearl beads are available upon request. Reusable and easily cleaned with mild soap and water. Complete care and instructions printed on item . Complies with CPSIA, FDA, Prop 65. 7.5" L x 0.25" W x 4.5" H. Price includes a 1 Colour Imprint. Imprint area is 2.75" W x 2.0" H on Front. Call for multi-colour or multi-location imprints or for rush delivery availability.