Have you seen our new bird cages for wing sprints and non-wing sprints? These bird cages are made from 7075 billet aluminum. The machining process performs an extra operation to ensure perfect bearing bore concentricity. These bird cages have a high end precision bearing – making them a little higher in price than our competitors but they come with a titanium top bolt and a high hardness stainless steel bottom bolt. These are the strongest bird cages available and the only bird cages like this on the market – you get what you pay for!