Specifications:Name:Foldable Abdominal TrainerMaterial: steel pipe + foam + ABS plastic partsProduct gross weight: 10kgProduct load: 150kg/330LBSProduct size: 113x30x70cmFolded size: 100x47x22cmProduct function: leg exercise/abdominal/arm muscle◆ Basic model-beautiful waist machine (only abdomen function); comfortable rubber cotton grip; silent non-slip roller◆ Ordinary model-(waist machine + electronic watch): beautiful waist, abdomen and hip lift movement, intelligent electronic dial; four-speed height adjustment, silent non-slip rollers, generous sliding components, triangular stable structure◆ Two in one-(beautiful waist butt lift exercise + sit-up exercise): smart electronic dial, comfortable rubber cotton grip; silent non-slip roller, four-speed height adjustment, wide sliding components, triangular stable structure◆ Three in one-(beautiful waist and hip exercise + sit-up exercise + aerobic drawstring exercise): smart electronic dial, comfortable rubber cotton grip; silent non-slip roller, four-level height adjustment, generous sliding components, triangular stable structure◆ Four-in-one-(beautiful waist and hip exercise + belly reduction exercise + sit-up exercise + aerobic rope exercise): four-speed height adjustment, silent non-slip rollers, dual spring assist, LED smart electronic dial, high Elastic foam rolling massage, widening and thick sliding components, thick and comfortable rubber cotton grip, thick and long load-bearing steel pipeCompared with other products:1. Curved track design: 70° slope scientific design2. Increase thicker sliding components: thicker foam & large cushion3. Four levels of height adjustment to challenge different difficulties4. Four sets of silent rollers for smoother sliding5. Double spring assist, stronger rebound6. Triangular stable structure, strong load-bearing7. High-definition LED electronic watch: exercise nu