The low-back straps are specially designed straps that cross lower on the back and then wrap around and close in the front. This allows women to have the support and coverage of a bra without ruining the effect of backless dress, bridal gown, or prom dress. The low back strap is very easy to use. Attach the low back strap to the bra, cross it and attach it in the front. Suitable for two hook bras and 28mm 3 hook bras.2 Items in a pack.Could also be used for 38 mm bra closures.Lowers bra back up to 10 centimeters. Adjustable slider for perfect fit and comfort.Discreet strap stays in place and does not slip off.Hand wash only.Fits all 2-hook bras.Hooks: 100% NylonStrap: 88% Polyamide & 12% Elastane.