small size and , easy to carry. Bottom:Hot shoe with 1/4 inch screw hole; Top(installation platforms): 1/4 inch screw, widely applicate for camera ,flash light, light stand, tripod etc. With anti-slip rubber on the top for better protection. Panoramic Rotation:360 degree panoramic rotation; Tilt rotation: 90 degree; Ball head diameter is about 10mm, and it can be fixed easily by locking knob for meeting different angle. Product Name: Mini Ball Head with Hot Shoe 8 Pack Material: Aluminum alloy Color: Black Max Load: 1kg Weight: 36g/pc Size: 56mm x 18mm x 18mm/pc Top: 1/4 inch Screw Anti-slip Rubber Bottom: Hot shoe with 1/4 inch screw hole Package List: 8 x Mini Ball Head with Hot Shoe Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.