Practical combination suit: This set includes 20 elastic button extensions, with 10 jeans button extenders and 10 men's shirt collar extenders, offering a complete and sufficient combination for daily use. Long-term stable use: The dress shirt collar extender is made of high-quality metal, providing easy stretch and a comfortable wearing experience. The extension cord is constructed from high-quality elastic material, offering excellent elasticity to make pants fit more comfortably. Adjustable and easy to use: The shirt neck extender is simple to attach. Quickly gain extra room by connecting the elastic collar extender to the existing button on the shirt. The trouser extension features 3 adjustment slots, allowing waist expansion of 0.5 to 2.5 inches for convenient use. Comfortable and discreet: The button extender is designed to be invisible under belts or clothing, so there is no concern about visibility. It requires no sewing and is easy to use, allowing comfortable wear of your favorite garments. Wide range of applications: Suitable for shirts, pants, jeans, dresses, jackets, and collars, these button extenders help restore the fit of your preferred clothing. Color: Black + White Material: Cloth Package Contents: 20 pieces of elastic button extensions (10 jeans button extenders and 10 men's shirt collar extenders) Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.