This package includes four (4) original (hard) Posture Right® Neck Orthotics. – The original (hard) Posture Right® Neck orthotic is an injection molded device made of commercial grade ABS Plastic and is manufactured in the USA. It weighs 0.4 pounds, stands 4 inches high and 7.27 inches wide. This device is intended for aggressive cervical extension traction and curve correction on individuals the doctors deems healthy enough for its intended use.