Dritz Clothing Care Waistband Expanders are a great fix for snug or tight fitting waistbands. Easily slip over existing button to provide extra comfort for tight fitting pants/jeans, skirts and shorts. waistbands. Ideal for use when weight fluctuates or during pregnancy. Always remove before laundering or dry cleaning. This package contains 1 each of size 9/16? and size 3/4? Button Expanders. Provides extra comfort for tight-fitting waistbands Easily slip over existing button, No sewing required Ideal for weight fluctuations and during pregnancy If buttonhole is too small for Button Expander place spring through buttonhole first then attach to existing button Always remove before laundering or dry cleaning