High Quality: The bra extender is made of polyester and cotton fabric, comfortable and breathable. With high-quality stainless steel hooks, it is not easy to rust and can be used for a long time. Extra Space: The extended straps can create some extra space for you, making you more comfortable and relaxed when wearing a tight bra. Easy to Use: Just hang the hook at the bottom of the extension strap onto the clasp on the bra, and then use the hook on the bra to hang onto the clasp on the front side of the extension strap. Size Reference: 3 colors, 2 sizes, black & navajo white & white. Size 1: Hook: about 28mm/1.1" wide, 305mm/12" long, 4mm thick, eye closure: 296x50x4mm/11.6x2x0.15"; Size 2: about 28mm/1.1" wide, 280mm/11" long, 4.5mm thick, eye closure: 286x50x3.5mm/11.2x2x0.13". Multiple Uses: The underwear extender can be used for corsets, tight corsets, body shaping clothing, waist tightening, long line bras, tight corsets, skirts, body shaping clothing, and waist tightening clothing.