Protege 3.2V Bright White LED Otoscope Set with Accessories - The Perfect Tool for Medical School! (Tortoise Shell Case)Size: Tortoise Shell Case This is the newest model, with the best case option available, as well as the fastest shipping available online! You will receive 3 reusable specula in sizes 2. 5mm, 4mm and 5mm as well as our disposable specula adaptor, which is extremely important for those using this in a clinical setting. This is the only kit on Amazon that comes with a FREE Pocket Snellen Eye Chart! This fits your . by entering your model number. #1