Features: Made of high-quality material with excellent workmanship, durable and sturdy, rust-resistant and impact-resistant. Specially designed adapter for EF and EF-S lenses to EOS R RF mount full-frame cameras. Equipped with gold-plated contacts to enhance data transmission between the lens and camera. 1/4 inch screw hole design allows easy attachment to a tripod, providing hands-free operation. Includes a practical wrench for convenient installation and removal of the adapter ring. Supports fast and stable autofocus and IS image stabilization functions, enabling clearer and higher-quality photo capture. Supports fast EXIF information transmission and electronic aperture control. Specifications: Model: EF-EOSR Color: Black Material: ABS + Metal Camera Mount Diameter: approx 50mm / 1.96 inches Lens Mount Outer Diameter: approx 65mm / 2.5 inches Product Size: approx 8 x 7 x 3 cm / 3.1 x 2.7 x 1.1 inches Product Weight: 95g / 0.2oz Package Includes: 1 x Adapter Ring 1 x Wrench 1 x Cleaning Cloth (random color) 1 x User Manual Note: After installing the adapter ring, set the lens to AF mode if autofocus is required. Due to lighting effects and shooting angles, slight variations in product appearance may occur. Please allow 0–2 mm error due to manual measurement.