Vision disk
Students can measure field of vision, reading field, and peripheral vision using this unique device
For grades 3-9 and 8-14 ages

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 21.5 inch
Height : 0.05 inch
Length : 23 inch

Item Weight: 0 ounce (View shipping rates and policies)
Shipping Weight: 1.8 pounds (View shipping rates and policies)

ASIN : B006580XJO