Skillbuildersä Bi Height Wedge 18 x 22 Height: 4 or 6 Manual Electric Treadmills Traction Device * Pulls at H300 is the third Traction Device * Pulls at the base of the occiput for more effective cervical traction and adapts easily to most other traction devices and units * Performs horizontal traction * One size fits most patients * Clevis is included (specify traction brand when ordering) * Other traction brands are: Chattanooga and Triton * may be stored in a four section lower shelf * 25 wide x 42 Long x 40 High * Position at a higher or lower height (use on side 1 or side 2) * Without the removable straps the deluxe wedge functions just like the standard Skillbuilders© wedge *