The F1051IN BK003 from Alpha Wire is flexible black heat shrink tubing with a 1.000" (25.40 mm) diameter, a 2:1 shrink ratio and a length of 250.0 ft (76.2 m).
The F1051IN BK008 from Alpha Wire is flexible black heat shrink tubing with a 1.000" (25.40 mm) diameter, a 2:1 shrink ratio and a length of 25.0' (7.6 m).
The F1051IN BK005 from Alpha Wire is flexible heat shrink tubing with a 1.000" (25.40 mm) diameter, a 2:1 shrink ratio and black color, supplied in a 100.0' (30.5 m) length.