Bra Extenders – 3 Row, 2-Hook, 3-Hook & 4-Hook – Comfort & Flexibility. ✔Multiple Hook Options – Choose from 2-hook, 3-hook, or 4-hook styles to match your bra. Upgrade your lingerie comfort with ourBra Extenders, available in versatile3-row designs with2-hook, 3-hook, and 4-hook options.