||The Fineline 1 piece kit reflects the latest in clip-in extension technology. The hair is stitched to a polyurethane layer, resulting in a lighter, thinner, virtually undetectable piece that lays flat to the head for a more comfortable, natural-looking effect. Use this piece to create instant color low-lights or high-lights while at the same time adding a bit more volume. Made with Tru2Life heat friendly synthetic fiber, the 1 Piece Fineline is ready to style any way you want! Straight, waves or curls - you choose!