This is a very nice complete diagnostic set with 5 different instrument heads, all accessories for doing a thorough ENT exam. All instrument heads use long lasting bright white LED bulbs with very low power consumption, batteries last and last. Includes otoscope, disposable otoscope specula, ophthalmoscope, bent arm illuminator, nasal speculum, and tongue depressors and adapters. Really nice fitted zippered carry case that is really protective of all instruments. The otoscope lens is optical glass and magnifies 4X. It is not fiberoptic but still works really well. The ophthalmoscope lens are excellent and gives a clear view of the optic nerve and fundus in a dilated pupil. The ophthalmoscope doesn't have the bells and whistles like colored lights and grids like a Welch Allyn but it is very adequate for a basic funduscopic exam. In reality I never used the bells and whistles on my W/A ophthalmoscope during my past 25 year career in medicine. If you had a suspected corneal abrasion or foreign body you stained the cornea and used a large magnifier with black light to exam the cornea.This is one of the best of the less expensive kits out there because I have made sure our manufacturer has used excellent Taiwan made lenses in both the otoscope and ophthalmoscope. We will also stand behind this product and if you ever have a problem we will work hard to resolve no matter how long you may have owned it.