1/4" Hard Anodized Threaded Single Rod Clamp For 15mm Rail System Rig

1.quick detail:

• material:aluminum alloy and plastic 
• net weight:45g
•  construction:hard anodized
• rail diameter:15mm

2.decription:

This single rod clamp fits onto any industry standard 15mm rail system.  It features a ¼" thread which can be used to attach any compatible accessory.  It also features a knurled knob, which can be screwed upwards after attaching the accessory.  This action secures the accessory from spinning loose as a result of the frictional contact with the knob.

3.application:

all have 15mm rod