Filling is 100% cherry pits. Cover is 100% cotton. Size: 18″ x 7″ x 1″ “What is a cherry pit pac?” Concisely put, it is a hot/cold pack filled with dried cherry pits for therapeutic or comfort uses. Store it in the freezer, or throw it into the microwave for 2 minutes. Ideal for headaches, back/neck issues, sore muscles, or simply for comfort. Every night during the winter months, there is a long line for access to the microwave, as cold feet like the pit-pacs deep down under the covers. During the summer, however, with the garden growing by leaps and bounds, and five acres of grass to be cared for, there is many a time when someone could be found with an ice-cold pit-pac draped around their neck. While many hot/cold packs are filled with rice, barley, beans, and other small fillers, we chose cherry pits for their effectiveness and durability. A removable cover adds to the practicality, as it allows for easy washing. Each Thera-pit-ic pac is packaged in a clear gift box.