The "Sag-Free" Euro Spiral Spring offers a closely woven mesh construction of double and quadruple strands of 2.0 gauge wire for super strength. The memory mesh is roll welded to the frame, so no helical springs or links to break or fatigue. Adaptable with a number of bed ends, like our Premier University Bed Ends & the Dorm Master Bed Ends. Excellent stability with cross members to support and stabilize frame.