Guardian Fall Protection 10600 2-Way Universal Standing Seam Roof Clamp Fits most brands and styles of standing seam roofs and is completely reusable Unique reversible design allows for seams up to 1-Inch to make sure you've got the perfect anchor from job to job Anchors securely without damage to completed roof Designed for one person single tie off and can be used with retractable lanyards, vertical lifelines, and shock absorbing lanyards Meets all applicable anchor durability reusable/temporary standards as set by OSHA