Easily attach a filter and MC protector to your lens. Accessory Type: Filter adapter Length: 0.4 in Diameter: 2.1 in Weight: 0.42 oz Color: Black Thread Diameter: 49 mm Designed For: Cyber-shot DSC-RX100, DSC-RX100 II Accessory Type: Filter adapter Length: 0.4 in Diameter: 2.1 in Weight: 0.42 oz Intended for: Digital camera Thread Diameter: 49 mm Material: ABS plastic, polycarbonate Color: Black Designed For: Sony Cyber-shot DSC-RX100, DSC-RX100 II