3:1 Polyolefin heatshrink - B2(3X) is extremely versatile because of its ability to shrink to 1/3 its original diameter. This means you don't have to worry about heatshrink sliding off your work or looking sloppy after secured. Available in one color (dark grey) and 5 diameters:
1/4" - small parts and wire
1/2" - smaller RCA plugs (Eichmann Bullet- plastic housing, WBT NEXTGEN) and speaker connectors
3/4" - larger RCA plugs (Eichmann Bullet w/ Aluminum housing) and speaker cables
1"     - speaker cables and power cable bodys
1.5" - Male AC plugs and IEC connectors to cable bodies larger than 1/2" dia.
3:1 CLEAR Polyolefin heatshrink - A4(3X) is similar to the B2(3X) above, but is a clear material that will allow for see-through cable identification and labeling. Available in 3/4" diameter.
3:1 Adhesive lined Polyolefin heatshrink - W3(B2) is similar to the B2(3X) above, but has a thick wall of modified polyamide adhesive which melts and flows, encapsulating and sealing components contained within. Available in 3/4" diameter, which will fit around most RCA connectors. Works well as a breakout boot for speaker cables. Simply heat with heat gun at the "Y" and then compress between the pigtails of the "Y" with a needle-nosed pliers.
3:1 Adhesive lined Polyolefin heatshrink - W5(DL) is a semi-rigid, dual wall polyolefin heat-shrinkable tubing. When heated, the inner liner melts and flows to encapsulate components contained within. This is a great heatshrink for parts that are fragile and need the rigidity and strength of this heatshrink. Available in 1/2" diameter, which will fit around WBT NextGen RCA connectors, and smaller diameter RCA plugs, including the Eichmann Bullet plugs with PLASTIC housings. Will NOT fit Eichmann Bullet plugs with Aluminum housings. * Sold in 1 foot sections only, due to stiffness.
Note to DIY'ers:
1/2" heatshrink is recommended for Flavors 1 and 3 power cables
1" heatshrink is recommended for securing the ground wire to Flavor 2 power cables
1 1/2" heatshrink is recommended for securing the AC plugs to the main cable body on Flavor 2 power cables