Series 1816 Round Shoring Bars are made of Galvanized Steel tubing with Push-Button Adjustment. The bars have a spring-loaded end that adjusts to a 5" range. Additional 4" increments of adjustment can be made with the easy to use push-button mechanism. Shoring/Horizontal or Vertical Rating: 500 lbs./230 kgs. WILL NOT SHIP VIA UPS, WE HAVE TO QUOTE SHIPPING COST br>