Disposable eye occlude but durable enough to withstand handling – padde style and long handle occluder for visual acuity testing, single ended for ophthalmic and optometric exams. Efficient tools for ophthalmologist, orthoptist, optometrist, doctor's office or patients to check their eye vision. Features: Material: Cardboard Paper Length: approx. 7.5 inches or 19cm Package: Pack of 12 pieces Color: White Dia. of Occlusion: approx. 2.6 inches or 6.5cm