Watermelon Hot/Cold Pack $5.75 SKU HW40 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Free shipping for orders over $35* in the USA & Canada! We Ship Globally! Use hot or cold for lunch boxes Material: non-toxic gel, vinyl. Product: 2.8" x 5.2" x 0.4"