Suitable for most DSLR cameras, camcorders, etc. Makes zooming easier, ideal for various photography situations. Non-slip, smooth design won't damage your camera. High-quality aluminum alloy grid design for stability and durability. Easy to install and use. Application: The follow focus ring is suitable for most shooting situations. Choose according to your needs. High-Quality Materials: High-quality aluminum alloy grip. The follow focus ring is rigorously tested for reliable quality. Convenient and Practical: Easy to operate and install. The follow focus ring is an excellent product to meet your needs. Professional Design: Designed with a large outer diameter to fit most cameras and camcorders. Convenient and practical. Professionally Manufactured: Built-in stainless steel screw, conforming to global standard size. More details in the product description section.