Overview Reviews Product Description Constructed of 3 heavy-duty, reinforced aluminum i-beam rails that extend up to almost three times the collapsed length.Rails lock securely in infinite settings to meet any extended leveling needs.Features large, easy to read vials and a large handle for easy gripping and holding with or without gloves.Guaranteed accurate for life to .058-degrees.Irwin tools extendable level, 4-foot to 10-foot, 8-inch (1801106). Irwin Tools Catalog Product Videos Custom Field Manufacturing country US Product Reviews Write a Review Write a Review × Irwin 48 - 128" Extendable Level 1801106 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *