https://www.ebay.com/sch/i.html?_nkw=3M+Itcsn+1500+25+U+Shrink+Tubing+1+500+In+Id+Black+25+Ft&_sacat=0&_dmd=2

3M Itcsn-1500-25-U Shrink Tubing, 1.500 In Id, Black, 25 Ft

Regular price
$192.00
Sale price
$129.00

Heat Shrink Tubing, Material Cross-Linked Polyolefin, Heavy, Temp. Range -67 Degrees to 230 Degrees F, Shrink Ratio 4:1, Black, Length 25 ft, Wire Range 3/0 AWG to 400 kcmil, I.D. Before Shrinking 1.500 In, I.D. After Shrinking 0.370 In, Wall Thickness After Shrinking 0.170 In, Max. Voltage 1000V, Features Adhesive Lined, Standards UL Listed (UL 486D) File E-102356 and CSA Certified