Customize your bra band to better fit your body. Simply attach this convenient band extender to your bra & you can increase your band length by up to 3 inches. It features 4 additional columns of eyes for either a modest increase in length to a more substantial one. Use them during pregnancy, when you’ve gained a little weight without an increase in breast volume, or when you can’t find the band size you need in the style you like. Note: It does not change the cup size. Fits bras with 3 rows of hooks (2.25 inches tall).