CRESTA's Heavy Duty Weigh Sling are made from fish friendly plastic coated material. The 2 sturdy, round tubes with spacious handles make it easy and stable to attach to a weighing hook. The leak holes allow excess water to drain. Thanks to the wide design, both round and square nets can be emptied comfortably in these weighing sacks. A detachable strap is attached to the bottom for safe retrieval from a higher side. These weighing bags can also be used to weigh the catch, including the storage net.