DX Engineering Fiberglass Tubing is ideal for building your own antenna support, such as quad spreaders, insulated UHF stacking frames, a vertical wire, or even push-up masts using the larger diameter tubing. These 8 ft. lengths of high-quality 1/8 in. wall pultruded fiberglass tubing are designed to smoothly telescope together with the next adjacent size. DX Engineering Fiberglass Tubing features a soft gray color that is uniform from piece to piece to make an eye-pleasing assembly and is finished to be highly UV resistant.. The optional slit ends are ideal for clamping without drilling, which weakens the tubing. Don't forget DX Engineering stainless steel element clamps for that final, long-lasting assembly or easy-to-assemble portable installation. DX Engineering Guy Rings and Vertical Guying Kits are available to stabilize a vertical assembly.