Hand Tools

Standard Logarithmic Eye Chart, LED Eye Chart Light Box with 1.6cm Thick Aluminum Alloy Frame for Schools, Offices, Homes, Easy To Clean COMFORTABLE LIGHTING: equipped with LED lights, uniform light emission, constant voltage without flicker, no glare, providing a comfortable and stable light source environment for vision testing, while low power consumption, no high electricity... Standard Logarithmic Eye Chart, LED Eye Chart Light Box with 1.6cm Thick Aluminum Alloy Frame for Schools, Offices, Homes, Easy To Clean