https://www.ebay.com/sch/i.html?_nkw=3M+8428+6+Shrink+Tubing+1+940+In+Id+Bl+6+In+Pk+10&_sacat=0&_dmd=2

3M 8428-6 Shrink Tubing, 1.940 In Id, Bl, 6 In, Pk 10

Regular price
$195.00
Sale price
$131.00

Cold Shrink Tubing, Material EPDM Rubber, Black, Length 6 In, I.D. Before Shrinking 1.940 In, I.D. After Shrinking 0.950 In, Max. Voltage 1000V, Package Quantity 10