Come and see our amazing products! Made of quality Plastic. This glasses can help exercise eye muscles and relax your eyes, and activate your natural vision ability to see clearly. Prevention and reduction of near eyesight, astigmatism, squint and amblyopia. 5.6" L x 5.5" W x 2" H. Your custom logo can be imprinted. Pls confirm further with us if any query about packing info, inventory status and time schedule.