Overhead Traction Item# 990 Overhead Traction is A popular way to alleviate pressure on the spinal column. Overhead Traction has a variable, water-filled weight bag provides necessary tension. Overhead Traction Includes an adjustable head harness and necessary hardware. Overhead Traction is a popular way to alleviate pressure on the spinal column. A variable, water-filled weight bag provides necessary tension. The Overhead Traction system also includes an adjustable head harness and necessary hardware. Consult your healthcare professional before using this Overhead Traction product.