When you see the RSPB logo, you can be assured its the very best it can be. All products are designed for wild birds by conservation experts and 100% of RSPB profits are used to continue our vital conservation work helping save birds and nature. |Made with a tough UV-stabilising polycarbonate tube which helps prevent yellowing caused by sunlight |Highly durable polypropylene fittings |Ideal for feeding sunflower hearts or seed mixes