美国采购需求：铝合金折叠轮椅

I'm looking for covers specifically designed for the wheels of my power chair. Could you provide me with details on the available options? I'm interested in knowing about different materials, colors, and any other features that might be beneficial. Also, could you share the pricing for these wheel covers and any minimum order quantities I should be aware of? I'd appreciate it if you could include shipping costs and lead times as well. Thanks!