Heat or Freeze Wheat Neck Collar by Simply PhysioThe Simply Phsyio Neck Collar features a washable cover made from traditional Black Watch tartan fabric and a removable inner wheat bag. The inner wheat bag can be heated in a microwave or chilled in a freezer. The Neck Collar fastens securely around the neck and can be adjusted for size, it will provide an even level of heat when in positon. It is excellent for relief from neck injuries such as whiplash. Size 75cm x 12. 5cm approx. Manufactured to BS