Specification Brand : Horoper BulletPoint1 : Brilliant Illumination: Navigate confidently with the brilliance of our acrylic bulb-powered flashlight. It delivers focused, efficient light that not only conserves energy but also boasts exceptional durability, ensuring reliable performance over time. BulletPoint2 : Convenient Portability: Elevate your convenience with our portable design. The included clip enables easy attachment to pockets, collars, or any accessible areas. This pen-style flashlight becomes your trusty companion for quick and accessible lighting. BulletPoint3 : Effortless Control: Seamlessly manage your lighting needs with our rear end alloy button switch. The uncomplicated on-off operation ensures you can easily activate the single light mode whenever required. BulletPoint4 : Built-In Ruler Functionality: Experience enhanced versatility with our engraved 50mm scale ruler. This thoughtful addition transforms the flashlight into a quick and handy measuring tool for everyday tasks, adding practicality to your toolkit. BulletPoint5 : Empowering Examinations: Empower your medicals practice with our flashlight's integrated pupil comparison chart. This invaluable feature assists medicals professionals during clinical examinations and routine checks, enhancing accuracy and diagnostic capabilities. Color : Purple FinishType : Finished IncludedComponents : Nurse pen ItemDisplayDimensions_Length : 4.53 centimeters ItemDisplayWeight : 0.06 pounds ItemName : Pen Lights for Nurses, Portable Yellow LED Pen Light for Medicals Inspection – Aluminium Alloy Pen Lamp with Pupil Gauge, Ideal for Nurses and Doctors(Purple) ItemPackageDimensions_Height : 2 centimeters ItemPackageDimensions_Length : 14 centimeters ItemPackageDimensions_Width : 3 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : professional-medical-pen-lights Manufacturer : Horoper Material : zinc alloy Material1 : Metal Material2 : Resin Material3 : Aluminum Material4 : Acrylic ModelName : Other (Health Monitors) ModelNumber : X561P07K421KVEC164 NumberOfItems : 1 NumberOfLithiumMetalCells : 1 PartNumber : Horoperb7tu0sioea5259-13 PowerSourceType : Battery Powered ProductDescription : How to Use: Install 2pcs AAA batteries with the positive terminal facing the light head and press the end switch to switch the light on and off.