I purchased these for ceremonies, so they have only been worn a few times. This is a set of size 120 (for a 6-year-old) and size 100 (for a 4-year-old). I didn't see any pilling or stains. Please let your sisters wear these matching dresses. A set of two white dresses with ruffles and gold embroidery. - Color: White - Design: Ruffled dress - Decoration: Gold embroidery - Size: Set of 2 (different sizes) Thank you for looking.