The characteristics of mushroom Anchor:∴ Gray cast iron∴ Available coated with aluminum-painted finish, PE coated orblack PVC coated finish∴ Many sizes are available. Aluminum-painted: 8LB, 10LB, 15LB, 20LB PE coated: 8LB, 10LB, 15LB, 20LB PVC coated: 8LB, 10LB, 15LB, 20LB