Optical flipper is a practical tool that is designed to help optometrists and professionals perform flipper tests and evaluations with precision and efficiency. It features a unique design that combines the functionality of a flipper with the convenience of a handle, ensuring a comfortable, secure, and accurate grip during use. Features -Color:Assorted Color -Material:PP, paper -Size:20.00X9.80X0.20cm/7.86X3.85X0.08in - Optometry specification: ±150° - Dual-sided design: The optometry flipper adopts dual-sided design, meeting different needs. - Vision training: By using this flipper for vision training, it can effectively improve vision problems. - flipper: Professional flipper optical , adjustable degree is high, suitable for different vision problems. - Sturdy material: Made of PP materials, the flipper is robust and not easily damaged. - Easy to use: Simple operation, suitable for home use, convenient for vision training anytime. Package list: 1 x optometry flipper 5 x word rock cards