I've recently purchased image-stabilized binoculars, so I'm selling this monocular as I no longer use it. 【High Magnification】 This monocular has a magnification range of 10x to 300x, allowing for clear observation of distant objects. It extends from 15 to 18.5 cm. Comes with a case. 【Large Objective Lens】 The objective lens diameter is 40mm, providing a bright and clear field of view. 【Convenient to Carry】 The lightweight and compact design makes it ideal for travel and outdoor activities. A strap is also included for easy carrying. - Magnification: 10-300x - Objective Lens Diameter: 40mm - Eyepiece Lens Diameter: 27mm - Color: Black - Strap: Included Thank you for looking.