Portable and lightweight traction collar gently stretches and relaxes muscles slightly for pain relief. For professional and home use. Does not require assembly or batteries. Fastens easily with buckles. Includes carrying case. Collar is constructed from soft, plastic foam; internal inflatable bladders contain natural rubber latex. 97% cotton and 3% Lycra fabric covering can be easily removed and cleaned with warm water and mild soap. Not for recent sprains/strains, injuries or acute conditions.