SmallRig Dual 15mm Rod Clamp with 1/4" Threads 1078
You can attach the CoolBlock-15mm to your rig's 15mm rods to provide 1/4"-20 mounting screws.  It comes with RED standard 1/4"-20 thread, so you can also mount the CoolBlock-15mm on the top of your RED cheeseplates, cages, battery plates, and more. Extremely versatile, compact, and lightweight.  It comes with ratchet wingnut.
 
Weight: 0.053kg (0.12 lbs)
 
Metal: aluminium alloy

Notes: we offer 4pcs standard 1/4"-20 screws for FREE as Gift if you want to mount it on your RED rig.