Installs onto 2-1/2 to 18 in wide I-beam flange (6.3 to 45.7 cm) up to 1-1/2 in THK (3.8 cm)Attach in any orientation or directionCompact and lightweight designHigh strength steel and aluminum constructionExtremely rugged and corrosion-resistantSwiveling D-ring tie-off pointDetent style attachment with built-in tightening handle