- VANLO YSG pinhole glasses designed for eye care and visual training - Made of high-quality black plastic, lightweight and durable - Full-surface grid that promotes eye exercise and reduces visual fatigue - Suitable for all types of users, both beginners and advanced - Includes accessories: protective case, detailed description, exercise chart, and multilingual audios - Measurements: width 142 mm, temples 110 mm, nose bridge 13 mm for a comfortable fit - Perfect for improving visual acuity and complementing eye health routines - Product in the health and personal care category, reading glasses type