Attwood 3.5lb Grapnel Anchor System [11969-4]3. 5lb Grapnel Anchor System This 3. 5lb anchor will hold your PWC, canoe, dinghy, kayak, or float tube in sand, mud, gravel, and rock. Includes 25' of rope, marker buoy, giant snap hook, anchor and a durable nylon storage case that protects your boat from scratches. WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to