£13.99
Helps improve convergence insufficiency, as well as strength sight focusing.
Effectively promote convergence to corrects nearsightedness and strabismus.
Can be used at home, very easy to operate.
Can be used for convergence insufficiency training, sports training and front sight focusing training.
Made of quality beads and line, durable and convenient to use.
Helps improve convergence insufficiency, as well as strength sight focusing.
Effectively promote convergence to corrects nearsightedness and strabismus.
Can be used at home, very easy to operate.
Can be used for convergence insufficiency training, sports training and front sight focusing training.
Made of quality beads and line, durable and convenient to use.
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