Founded in 2010 in Yiwu, Zhejiang, Kaisu products are mainly home fitness sports equipment, including exercise bikes, strength trainers, leisure trainers and ball sports equipment, etc., and has become a brand with a good reputation in the fitness products industry.
 
Kaisu's abdominal wheel products are diverse, which can meet the needs of consumers of different exercise levels, and its price is relatively affordable, with the highest single product price only about 100 yuan, which is definitely a good choice for entry-level enthusiasts. Kaisu has three common abdominal wheels on the market: double-wheeled, multi-wheel and widened wheels. Among them, the balance of multi-wheel and wide-wheel is easier to master and suitable for novices, while the double wheel is suitable for enthusiasts who have a certain fitness foundation.
 
Kaisu PR33 and KA27 are four-wheeled and widened wheels with excellent stability. The PR33 has a balanced design of four wheels, which can avoid side slippage when in use, and the wheel base is 15.7cm, which is conducive to the user's balance during exercise. The KA27 is a 16cm wide abdominal wheel, with an ergonomic handle design similar to that of the Perfect Fitness Ab Carver Pro, and also has intelligent braking and automatic rebound functions, which is more conducive to beginners. The PR33 and KA27 are priced at 55.9 yuan and 79 yuan respectively.
 
Compared with PR33 and KA27, KA502 will be more suitable for consumers with a fitness foundation. This is a two-wheel structure belly wheel, but unlike ordinary two-wheels, the KA502's rollers have been widened and designed with a car-like tire pattern to enhance balance and anti-slip. It is also available in orange and blue, with the blue version adding spacers on both sides and in the middle of the roller to enhance stability and avoid rollover and skidding. The KA502 is also designed with novice users in mind, and consumers can choose to use a drawstring as an aid when exercising. Its price is between 69-129 yuan, and consumers can choose different configurations according to their needs.