Heavy gauge 18 wide coated spring steel underwire for bras bustiers corsets or clothing These wires are considered a regular daily wear length which may be shorter than some wires but are too long for plunge or demi style wires When replacing a wire please check length measurements Measure your wires and compare the lengths to the charts in the images shown Not all manufacturers use the same wires so yours may vary from the recommended sizes Please refer to the size and measurement charts in the images show but the recommended sizes for the Size 40 are 28H 30G 32FDDD Can be used as a replacement wire for a full coverage bra Please choose your size carefully and double check you have selected the correct size in your shopping cart prior to placing your order