★ Freely adjust the size and pressure: 4CM widened anti-slip strap, gear adjustment straps 25-27cm, simple design, easy to wear, free adjustment, suitable for adults of all sizes. If you need a children's version, please contact the seller. ★ Professional all-round correction: Oval ring design, large-area coverage and pressure, balanced pressure on the upper and lower middle parts of both sides, empty design on both sides of the chest, does not affect breathing, and allows space for chest development. ★ Correction Principle: Use the corrector to continuously apply reasonable pressure to the protruding sternum. After a period of time, the sternum can slowly return to its normal shape. ★ Can be Worn on Both Sides: Regardless of front and back, up and down on both sides, and press where the middle part is protruding. Skin-friendly and breathable composite fabric, removable and washable lining, thickened resin double panel, durable, and prepared for long-term correction. ★ Comfortable To Wear, Suitable For Day And Night: It can be worn front and back, regardless of front and back, suitable for day and night, fits the human body, comfortable to wear, breathable and not stuffy, and will not move.