clamp design to be bury with riser bend 5' pass the mudline, design is to hold back riser from moving or sliding soil, has 4" ansi class 600 anchor flange, 4" ansi class 600 wnflg, jaw to jaw turn buckle and eye to jaw turnbuckle, riser clamp have vulcanize neoprene 1/2" , 48" caisson clamp and 4" hinged riser clamp brace