Features: This optical flipper set, designed for amblyopia blinder exercises, features double sided flip lens and glasses strap connectors, providing a unique optometry instrument flips experience. It enhances vision improvement and eye accommodation training tool sessions for users with weak eyesight at home or eye clinics, making it an essential vision training tool for restoring visual coordination. Features -Color:Multi -Material:Plastic, glass -Size:21.50X10.50X0.50cm/8.45X4.13X0.20in -Vision improvement aid:this optical lens flipper set supports effective glasses for vision improvement and enhances training outcomes for both home and clinical settings -Efficient vision training: utilizes flippers for optometry to deliver precise vision training tools, scientifically improving eye coordination -optometry equipment: features unique flipper lens technology, making it a reliable optometry instrument flip for practitioners and individuals, boosting the effectiveness of visual function training tools -Portable & convenient design: this amblyopia blinder and eyewear accessory is lightweight and portable, making it easy to transport for optical vision training, suitable for families and professionals -Plastic, glassconstruction:ensuring longlasting performance for repeated optometry instrument flippers and continuous vision therapy use Package list: 1 x amblyopia training glasses 1 x Eye Chart