Hydrotherapy and swimming give a wonderful sense of freedom to anyone who is confined to a wheelchair or has very limited mobility. In addition, the exercise is invaluable to mobilise stiff joints. Fabricated from buoyant, water-resistant and easy-to-clean foam, Kewell has produced swimming collars, head and neck supports as well as other flotation devices, for children and adults alike, for almost 30 years. All the aids are adjustable or come in a range of sizes, and may be useful in the bath as well as the swimming pool. Plastazote, which is the most-referenced thermoplastic in the medical lexis, was chosen for buoyancy and comfort — the foam is soft, absorbs impact, is kind to skin, and safe for children.