美国采购需求：三头肌绳、阻力带手柄、人体工学哑铃、地雷架、附件配件、杠铃地雷球

I'm reaching out to explore the possibility of purchasing ergonomic dumbbells specifically designed for individuals with mobility challenges. I have rheumatoid arthritis, which makes using traditional dumbbells quite difficult for me. I'm particularly interested in options that are available in the weights of 10 lb, 12 lb, and 15 lb, as these would best suit my needs. Could you please provide me with details on the ordering process for these ergonomic dumbbells? Additionally, if you have any recommendations or specific features that cater to users with similar conditions, I would love to hear about them. Looking forward to your response!