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