Engle 300 Patient Chair, Narrow Back W/ Slings - P096539 The only Traverse Dental Chair on the market, adds an extra 10” in any operatory. Narrow back provides optimal neck mobility for more comfortable positioning for patients. Includes five (5) preset chair programs on conveniently mounted touch pad. Take comfort to the next level with an upgrade to Heat & Massage. Available with Vinyl or Ultraleather® upholstery.