The Promar Seal Proof Bait Cage is made of rigid PVC piping to protect your bait from seals and other predators. Its removable cap and quick release clips makes baiting easy and simple to flush and clean. FEATURES: Made of rigid PVC tubing High grade stainless cables and clips secure the cage to hoop net rings and traps Removeable cap and quick release clips Diameter: 3.5 Length: 6 Model: AC-300SP.