Butterfly It is a no exaggeration to say that the best Pectoral fly is in Yanre. Most Pectoral fly in the market, exerciser can feel the discomfort and pressure on shoulder during workout Our pectoral fly can only focus on your chest muscle which is verified by many professional users. Main frame adopts 75*118*3.0 semi elliptical pipe, functional area adopts 50*120*3.0 flat oval pipe, movement arm adopts 40*80*3.0mm, joint pipe is 50*100*3.0 flat oval pipe. All pipes are Q235 qualified. The seat is made of Aluminum Alloy arm parallelogram structure, torsion spring adjustment, convenient and safe. High density foam upholstery, “furniture grade” PU leather, and integral ABS guard cover. POM material pulley, CNC processing, customized high quality bearing to withstand High-intensity and long-term use Cable inside the pipe, makes the machine organized. Full shroud, 4mm thickness ABS virgin material, durable and eco friendly. Japan made wire cable, with 6*19+1*75 coated wire which can withstand 1400kg strength.