日本采购需求：水上健身及训练设备、游泳池设备、设施及器具

I'm interested in sourcing kayaks and would like to get more details about your offerings. Specifically, I'm looking for a variety of models suitable for both recreational and more advanced use. Features like durability, stability, and ease of use are key for my target audience, so any insights on those would be great. Additionally, I'd like to know about the materials used, customization options, and pricing tiers. If you have any promotional brochures or catalogs, please share them as well. It's important for me to understand the scale of production and lead times too, as I'm planning to place a significant order. Looking forward to your prompt response!