Reinforce your slider when mounted on a tripod with this pair of ST102 Aluminum Slider Support Arms from Neewer. The durable aluminum arms mount onto the bottom of your slider on either end using 1/4"-20 screws, and their angle can be adjusted using the ball heads on either end. Crab-style clamps on the other end clamp the arms to the legs of your tripod, providing added stability on the slider ends.
Two nonslip pads inside the clamp jaws provide grip and prevent scratching. They can clamp onto a tripod leg with up to a 2" width and feature multiple 1/4"-20 and 3/8"-16 threads for additional accessories and mounts. The telescoping arms can extend from 23.2 to 37.8" in length. The pair of arms helps support loads up to 15.5 lb, and they weigh only 2.2 lb together.