For 2.5kg calibrated collar, everyone has different special concerns about it, and what we do is to maximize the product requirements of each customer, so the quality of our 2.5kg calibrated collar has been well received by many customers and enjoyed a good reputation in many countries. Shandong Newfield Fitness Equipment Co., Ltd.2.5kg calibrated collar have characteristic design & practical performance & competitive price, for more information on the 2.5kg calibrated collar, please feel free to contact us.