Specifications:
1. Plastic Rack and Wooden Case pack !
2. Including 8 pieces of lens-racks in a wooden box
3. Speeds up your retinoscopy with this piece of equipment!
4. This set consists of 8 lens rack
* Black (+) 6.00,7.00,8.00,9.00,10.00
* Black (+) 2.75,3.00,3.50,4.00,5.00
* Black (+) 1.50,1.75,2.00,2.25,2.50
* Black (+)0.25, 0.50,0.75,1.00, 1.25
* Red (-) 6.00,7.00,8.00,9.00,10.00
* Red (-)  2.75,3.00,3.50,4.00,5.00
* Red (-)  1.50,1.75,2.00,2.25,2.50
* Red (-)  0.25, 0.50,0.75,1.00, 1.25
5. Very useful for Pediatric Eye Examination.
6. Consider this: Kids tend to have short attention span and you would not want to spend unnecessary time changin trial lens.
7. Packaging:
* Packing Size : 310mm x 170mm x 60mm
* Weight : 0.8kg

Siliver case is available