Nsabers’ universal quick-release coupler fits all 1″-diameter 2-in-1 lightsaber handles. Before purchasing, confirm whether your handles use male or female threading. To install, remove the bottom covers from both handles and screw on each corresponding half of the coupler. To connect, align and push the spring-loaded stem until the ball-bearing lock clicks. To disconnect, press both handles together to release tension and pull out the central spring. Note: the ball bearings allow the coupled sabers to spin freely, so blade alignment may shift and require occasional adjustment. Female couplers apply:Combat, Mando SE,tano se, Halo, Zebra, Prismatic Sentinel, Venom, Volcano, Sparta, Mordekaiser, katana, JarvisMale couplers apply ECO Series Sabers, Drax, Temple guard SE, Revan, Fallen SE, Kylo Ren, Hunter