Singing Rock Sit Work II Easy Harness Sit Work Ii Easy Harness Xl; NFPA Class II ANSI Z359.1 (STEEL SPEED VERSION) Easy Lock or Speed buckles Sit Worker Ii Harness Weight 1100 grams (Speed), 1200 grams (Easy), 1300 grams (Speed NFPA) CE 1019 EN 358 EN 813