Now you can create custom length round tubes! These splices join our carbon fiber 1.5" round tubes to create any length you need. Made of multiple layers of carbon fiber, these splices fit on the inside of our round tubes using a structural adhesive (we recommend ScotchWeld 2216 epoxy adhesive). These splices are not designed for slip-fit use. The splice must be bonded to both tubes with a structural adhesive for proper joint strength.