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Yankkios
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Specifications: Condition: Brand New Type: Brock String Beads material: Plastic Size: Beads diameter: 2cm Rope length: 204cm Brock String - used in fixing convergence insufficiency and sports training. The basic purpose of the Brock String is to develop good binocular functions; in other words to get both eyes working together well. This activity teaches convergence - the ability to point both eyes more accurately at a target. Package Included: 1 x Cord 3 x Beads
Notes: Other acceories demo in the picture is not included. Due to manual measurement, please allow size differences about 1-5mm. Due to the light and screen setting difference, the item's color may be slightly different.
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