1. 4 Wooden Racks and Bamboo Case pack.

2.Speeds up your retinoscopy with this piece of equipment!

3. This set consists of 4 lens rack

*  (+) 0.50,1.00, 1.50, 2.00, 2.50, 3.00, 3.50

*  (+) 4.00, 5.00, 6.00, 7.00, 8.00, 10.00, 12.00

*  (-) 0.50,1.00, 1.50, 2.00, 2.50, 3.00, 3.50

*  (-) 4.00, 5.00, 6.00, 7.00, 8.00, 10.00, 12.00

4. Very useful for Pediatric Eye Examination.

5. Consider this: Kids tend to have short attention span and you would not want to spend unnecessary time changin trial lens.