Features: brand new and high quality Sturdy material ensures maximum strength and durability for long lasting usage. The single locking knob fixes angle tightly and holds your camera accessories solidly for fast and safe operation. Simple to use. Just attach monitors or small lights to your camera while shooting video. for Ideal for GPS, for smart phone, LCD, monitor, DV Video, light, camera, etc. Lightweight and multi-functional, convenient to carry. Double Ball for Head only, other accessories demo in the picture are not included. Specifications: Material: Aluminum Alloy Colour: Black Weight: 150g Type:A/B/C Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Double Ball for Head Adapter