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 regarding a vertical climber stair stepper we've recently reviewed. We've noticed that it is missing a crucial component—the blue grip located on the front bottom section. This part is essential for providing both safety and comfort during use, and its absence might affect the overall user experience. Could you please provide more information about the availability of this specific grip? We need to ensure that all components are in place to maintain the product's quality and functionality. Additionally, it would be helpful to know if there are any replacement options or if a complete unit needs to be ordered. Let me know how we can proceed to resolve this issue quickly. Thank you!