Heat Shrink Breakout Boot, Number of Breakouts 3, I.D. Before Shrinking 4.9 in, I.D. After Shrinking 2.32 in, Breakout I.D. Before Shrinking 2 in, Breakout I.D. After Shrinking 1 in, Material Polyolefin, Semi Rigid, Shrink Ratio Not Applicable, Flame Retardant Yes, Length 10 in, Color Black, Shrink Tubing Properties Abrasion Resistant, Acid and Alkali Resistant, Temp. Range -67 Degrees to 230 Degrees F, Wall Thickness After Shrinking 0.13 in, Dielectric Strength Not Applicable