The SmallRig Threaded 15mm Aluminum Rod Pack with Connectors includes two 8′′ 15mm rods, two 12′′ 15mm rods, and two rod connectors. The rods can be applied in different shooting situations depending on your needs. Each rod can attach via the connectors. The versatile combination extends your possibilities. SmallRig 15mm Aluminum Rod (Pair, Black, 8′′) Lightweight yet durable, this pair of 8′′ black 15mm Aluminum Rods from SmallRig is designed for mounting accessories on your camera rig. Integrated 12mm threads on each end enable you to lengthen the rods using separately available extensions. SmallRig 15mm Aluminum Rod (Pair, Black, 12′′) Lightweight yet durable, this pair of 12′′ black 15mm Aluminum Rods from SmallRig is designed for mounting accessories on your camera rig. Integrated 12mm threads on each end enable you to lengthen the rods using separately available extensions. With more connectors, rods can be extended as long as they need to be to fit your rig.