Size and Shape: The magnifying lens has a circular shape with a diameter of 4 inches. This size is convenient for handheld use, making it easy to hold and manipulate.
Magnification Power: The magnifying power of the lens determines how much larger an object appears when viewed through it. The magnification is typically expressed as a factor. A 4-inch diameter lens might have a moderate magnification power, such as 3x or 5x, which means that objects will appear three to five times larger than their actual size.
Lens Material: The lens is typically made from glass or acrylic. Glass lenses offer higher optical clarity and are less prone to scratching, while acrylic lenses are lightweight and shatter-resistant.
Frame and Handle: Many magnifying glasses feature a handle or frame around the lens to provide a comfortable grip and help with precise positioning over the object being magnified. The handle may be made from various materials, such as plastic, metal, or wood.