Expandable TubingProduct Details:Sizes: 1/8", 1/4", 3/8", 1/2", 3/4"Lengths: 1, 5, 10, 20, 25, 50, 100 FTColor: BlackMaterial: Expandable MylarGreat for wrapping power/ground cableKeep your cables looking like show car cablesUltra expandable (150% of original size)Protects from wear and heatGives an attractive look with a clean install