VIP Steel Pro Eco cartridges allow wildfowlers, game and clay shooters alike to be able to shoot steel shot cartridges safely with a non-plastic wad that is harmless to the environment. Eleys unique, certified Pro-Eco wad is 100% water-soluble and compostable, made from natural, non-toxic and fully biodegradable materials, ensuring that no trace is left in the field or marshes. It dissolves fully submerged in water in approximately 24 hours and up to 3 months in natural elements. As a Standard CIP Proofed load, the Eley VIP Steel Pro Eco cartridge is also suitable for use in most guns on the market. To check if your gun is suitable for steel shot please check the British Proof House Equivalency Table or consult your local gunsmith. They have been rigorously tested for safety and ballistic confidence, and are available in 32 gram 4 and 5 shot.