Features: Efficiently eliminate lens fogging with advanced heating technology, ensuring clear photography in humid conditions through rapid moisture removal. Features LED display for real time temperature monitoring and customizable timer setting to optimize energy efficiency. Ideal for professional photographers and outdoor enthusiasts requiring anti fog during rainforest expeditions or winter photography Maintains challenging environments like mountaintops or rapid temperature shifts between indoor/outdoor Crafted from nylon with lens compatibility, this lightweight defogging integrates seamlessly into any camera set while preventing condensation related image distortion. Specifications: Component:Nylon Size:33cm/38cm/43cm/53cm/63cm/73cm/83cm/93cm/103cm/123cm Package Includes: 1Pc Defogging Belt note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.