Magnetic bra-back extender that adds width for a more comfortable fit without sewing. Strong, easy-align magnets close securely yet release smoothly for dressing. The 50 mm (2 in) spacing fits many wide-band bras and helps extend the life of favourite pieces during size changes. Choose white for a clean, discreet look under light garments. For best results, test on a scrap first and match tools to fabric weight and machine class for consistent results.