美国采购需求：防鸟刺，防鸟网，防鸟刺，防鸽刺，防鸥刺，驱鸟器

I'm currently looking for high-quality stainless steel pigeon spikes designed to be 6 inches in length. It's important that these spikes feature a clear plastic bottom for added durability and ease of installation. Additionally, I would appreciate information on available quantities, pricing, and any relevant specifications you might have. If there are any variations in sizes or styles, please include those options as well. Looking forward to your prompt response!