Dextex's main products are supine boards, push-up frames, abdominal wheels, spinning bikes and treadmills. In terms of abdominal wheels, there are only three types of abdominal wheels, including double wheels, three wheels and wide wheels, but they have covered different types of mainstream abdominal wheels on the market. One of the most recommended is the Dendex Tricycle DDS628. Compared with Kaisu's three-wheeled belly wheels, the advantage of the DDS628 is that the steel tube is thicker, reaching 1.7mm, ensuring that the handle is strong and durable. And its price is about the same as Kaisu, both of which are about 49 yuan, which is cost-effective.