The SmallRig Lightweight 15mm Rail Block 2-Pack lets you mount a plate, cage, or other mounting gear onto 15mm LWS rods. Each aluminum rod block features multiple 1/4″-20 threads for mounting on plates, accessories, or cages, and two standard LWS 15mm rod ports which are secured with two locking levers. The 2-pack comes with four long 1/4″-20 screws, four short 1/4″-20 screws, and two Allen wrenches.