Product description ------------------- The heat pad gets warm and stays warm for around 8 hours, especially when used under covers. It is a solid disc, not flexible, can be used in a cushion if cushioning is required. As it stays warm for a long time it is suitable for using all evening and then to bed. Indications ----------- Pain Relief P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Directions ---------- Place the 9 inch disc for 5 minutes in the microwave (800 watt). See more ( javascript:void(0) )