Practical combination suit: the suit includes 20 pieces of elastic button extensions, with 10 jeans button extenders and 10 men's shirt collar extenders, available in black and white, offering sufficient and complete combinations to meet daily needs Long-term stable: the dress shirt neckline extender is made of high-quality metal, easy to use, providing a comfortable wearing experience; the extension cord is made of high-quality elastic belt with good elasticity, making pants more suitable and comfortable Adjustable and easy to use: the neck expander for dress shirts is simple to apply; quickly and easily gain extra space by connecting the elastic collar extender to the existing button on the shirt; the trouser extension features 3 slots, extending waist size by 0.5–2.5 inches Comfortable and invisible: the button extender is discreet and can be worn under a belt or tie without exposure concerns; easy to use without sewing, allowing comfortable wear of favorite clothing Wide range of applications: button extenders for shirts and pants are suitable for shirts, dresses, pants, jackets, collars, jeans, and more, helping you wear favorite clothes comfortably Color: black + white Material: cloth Package Contents: 20 pieces of elastic button extensions (10 jeans button extenders and 10 men's shirt collar extenders) Only the above items included; other products not included Note: Due to light reflection and display differences, the item color may vary slightly from the actual product; measurement error allowed within +/- 1–3 cm