Optometry Test Tools, Phoria Strabismus AC / A，Inspection Board With Tripod Mount

Description: The block is a phoria Strabismus AC / A test tool. Size: 15x9x2,3 CM Use 2 AA batteries, the product does not include batteries Currently there is only Chinese manual, if you do not understand this product, please buy carefully. The color of the bracket is sent randomly, it may be black or silver