3M Automotive Heat Shrink Tube SMS, 300, Black (White Squares) 48 instickGeneral Information Brand 3M Country Of Origin United States Sold As Case California Residents Proposition 65 Warning Return Policy NCNR Non Cancelable Non Returnable Dimensions and Specifications Inner Diameter After Shrink (Imperial) 0. 06 in Inner Diameter After Shrink (Metric) 1. 53 mm Inner Diameter Before Shrink (Imperial) 0. 3 in Inner Diameter Before Shrink (Metric) 7. 62 mm Maximum Operating Temperature (Celsius) 110 Degree Celsius Maximum