https://www.ebay.com/sch/i.html?_nkw=3M+Fp+301+3+Black+4+Bulk+Shrink+Tubing+3+In+Id+Black+4+Ft+Pk+12&_sacat=0&_dmd=2

3M Fp-301-3-Black-4'-Bulk Shrink Tubing, 3 In Id, Black, 4 Ft, Pk 12

Regular price
$238.00
Sale price
$165.00

Heat Shrink Tubing, Material Flexible Polyolefin, Thin, Temp. Range -67 Degrees to 275 Degrees F, Shrink Ratio 2:1, Black, Length 4 ft, I.D. Before Shrinking 3.000 In, I.D. After Shrinking 1.500 In, Wall Thickness After Shrinking 0.050 In, Max. Voltage 600V, Standards UL Recognized (No. E-39100, E-69751) and CSA Certified (No. LR38227). MIL-I-23053/5, Class 1. AMS 3636 (Type I) and AMS 3637 (Type II), Package Quantity 12