Complete dual mode training solution Combines targeted resistance exercises with focused breathing work to promote abdominal toning, improve respiratory function, and develop core strength. Dynamic adaptation for progressive gains Naturally adjusts to your training progress across multiple levels, providing progressive resistance for respiratory muscle development. Portable and space saving Compact design that is easy to carry and store, suitable for home use or onthego fitness programs without adding bulk. Residue maintenance Detachable modular frame prevents dirt and residue buildup, enabling quick cleaning and fast reassembly for hygienic and safe use with dumbbells. Key attributes and compatibility Function: supports abdominal toning, respiratory function improvement, and core strength development through integrated breathing and resistance work. Compatibility: designed for use with dumbbells; modular frame facilitates hygienic setup and use. Size and portability: compact, spacesaving design for easy transport and storage. Performance: features multilevel resistance to enable progressive training and ongoing respiratory muscle enhancement. Use scenarios Athome routine: perform breathing drills in combination with targeted resistance exercises to tone the abdomen and strengthen the core. Onthego or gym use: take advantage of the portable design to maintain a compact, effective workout in various locations. Progressive training program: start at the lowest resistance level and advance through the available levels to steadily increase respiratory muscle power.