Novaks Heat Shrink Tubing Assortment -- 6 pieces provides dependable, clean connections. The heat shrink is available in 6 inch long increments, double the length of most heat shrink tubing available. The heat shrink comes in six sizes: 1/16, 3/32, 1/8, 3/16, 1/4" and 3/8 and has a 2:1 shrink ratio. It is also lead free and RoHS compliant.