Features: Excellent Field glasses Lensesecond: Specifically developed for Standard Elongator 1.4x and 2x on 600mm IS , 800mm IS , and 100 500mm F4.5 7.1 L IS glasses, ensuring a precise and tight. Dirt and Scratch Security: Protects the elongator glass from dirt and scratches when not utilized, maintaining optimal lens execution and clearness. Easy Installatparticlemail: Features a simple poniard mount plan for quick and bother complimentary appendage to the elongator, making it user friendly. Permanent ABS Substancemail: Constructed from excellent ABS substance, offering permanent durability and consistent security for your elongator. Compact and Thinumberebog: Short skirt diameter of 71.2mm, this elongator protect is compact and thin, ensuring it doesn’t add bulk to your camera arrange. Specifications: Dimension: Diameter 71.2mm component: ABS Color:black Package Includes: 1 Piece Front cover dustproof cover 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.