When heated, the cellular structure of the silicon beads provide ideal insulating qualities. Heat is absorbed evenly and the stored energy radiates to deliver passive and relaxing heat that may ease aches and pains. Stays warmer longer Evenly distributes heat Odour free Hygienic Molds comfortably to body Safe for those with wheat allergies Naturally absorbs moisture Weevil & insect proof May assist with the relief of: Back, neck, knee, hip, arthritic, rheumatic, muscular and menstrual pain. Discomfort of toothache, leg-cramp and colic. Sports injuries, sprains and strains etc. As a comfort relaxation cushion.