Guys you can make your own custom length Rod Sleeves, Stick Jackets etc. Simply order on ebay or some other website (search for expandable Sleeving) You can find this is many materials including carbon fiber and kevlar, stainless steel, etc.... Look for the heavy PET material, as I believe it works best. The size you are looking for for casting rods is 1 1/2" Which has a range of 1" - 2 1/2" Small enough to tighten up on your rod, but wide enough to slip off when you push it. For a spinning rod you may want a 2" 1 1/2" - 3 1/2" size. This comes in several more colors that the Stick Jackets offer
and you can cut to length. Shop around though, you may end up paying more than you need to. Of course you can buy them already made, and their great for keeping your rods together, but for about the same amount of money you can make them to your own custom length.