SUNWAYFOTO brand Focusing Handle DRH-70 Allows Precision focusing & zooming. Great for rotating filters like CPL. 1. Precision machined from solid aircraft-grade aluminum. 2. Anodized finish, solid and durable. 3. Patented Ring-Handle adjusting lock avoid scratches. 4. light and portable. Please measure the diameter of your lens where you intend to mount it. Inner diameter: 68-76mm. Handle length: 46mm. Weight: 48g. Material: 6061T651. All metal construction.