High Quality: They are made of high quality plastic , lightweight and durable , not easy to break.They can protect your eyes in playing sports and daily training. Adjustable Length: The dribble goggles are designed with a elastic and adjustable strip, allowing you to adjust its length to suit your head, improving comfort level and making sure that most people can wear it. The design can make the wearer focus on dribble and handle the ball without looking down.It is a good helper to practice dribbling skills for both basketball and soccer, both youth and adult will love this accessory.Keep your head up and see open teammates more often while you are dribbling. HOW IT WORKS: Unique design helps train players to Dribble and handle the ball without looking down. Restricts Downward Vision During Practice of Dribble & Handling the Ball. TRAINING AID: Does not interfere with shooting. Improves ball handling and reaction time against defenders.