Features: To support heavy duty photography job, a durable ball head is very important. So many ball heads out there, which one would be perfect for your needs? Compare to other ball heads, following are some advantages for this ball head may interest you. 1, The base diameter is 70mm, L x B x H: 110 x 90 x 130mm, normally this is mid up size in the market. 2, Support up to 10KG/over 20lbs, it has security lock at the quick release plate part, keep your camera and lens safe. We know your worries. 3, This is universal with standard 1/4 screw at the top to mount on various cameras or telescope with lens for video shooting or birds watching, and 3/8 screw thread at the bottom, applies to universal tripod legs or other supports. Very easy to use. 4, Multi-angle fluid damping adjustment design The head adopting the fluid damping adjustment .design of front to back -90/+70 degree tilt ,which can provides multi-angle shooting. 5, 360 degree panoramic shooting. Fluid damping head system,provides 360 degree stable panoramic shooting. Brand:KINGJOY ·Size:140*140*390 mm/5.51*5.51*15.35 in ·Weight:2.4 KG/5.29 lbs ·Specification:Model: VT-2510 Head Type: Hydraulic head Material: Aluminum alloy Max Load Capacity: 5kg / 11lb Base Diameter: 75mm Screw Interface: 1/4" & 3/8" Quick Release Plate Size: 10 * 4.5 * 1.1cm / 3.9 * 1.8 * 0.43in (L * W * T) Item Weight: 1200g / 2.64lbs Package Size: 38 * 13 * 13cm / 14.9 * 5.1 * 5.1in Package List: 1 * VT-2510 Video Fluid Head 1 * 1/4" Female-3/8" Male Adapter Screw 1 * User Manual (English & Chinese)