It is an elastic buttonholes, the buttonholes allow you to adjust the fit of the elastic but do require an opening in an elastic casing for accessibility to the elastic and a button outside the casing to hold the elastic.
Material: Polyester and latex Width: 105mm Weight: 6.35g/cm.m Technics: Knitted Feature: High quality elastic; Soft to the touch Application: Maternity wear or kids clothes making
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