Songing 7Inch Or 11Inch Magic Arm, Stainless Steel Ball Head And Thread, Articulating Magic Friction Arm Adjustable1/4 Tripod Screw Compatible With Dslr Camera Rig/Dv Monitor/Flash Light/Microphone 1. Single Locking Knob, Fast Locking And Loosening. 2. Independent Joints, And The Direction Of Rotation Is Faster. 3. The Upper And Lower Tooth Surfaces Fit Together To Prevent Slippage, Increase The Locking Force, And Bear A Load Of =10Kg. 4. The Ball Head And Thread Are Made Of Stainless Steel, Which Is Stronger And More Durable. 5. 7 Inch And 11 Inch Are Optional, And Users Can Exchange Accessories Of One Sy-L7 And One Sy-L11 Into Two Sy-L9. 6. Gray Electroplating Process, The Product Is More Beautiful And Non-Reflective, Suitable For Use In Various Shooting Environments
