| Optotype set (letter version) | 10 Sloan letters (1/10 probability of correct guess) |
|---|---|
| Optotype set (numeral version) | 10 numerals designed with same principles as Sloan letters (1/10 probability of correct guess) |
| Charts included in a single test | 3 |
| Size (each chart) | 9.5 x 14 inches (24.1 x 35.6 cm) |
| Weight (each chart) | 7.2 ounces (205 grams) |
| Mounting | On sturdy non-warping plastic with rounded corners for safety and comfort |
| Storage | Storage case with vinyl sleeves for each individual chart (included) |
| Documentation | Spiral-bound user manual with score sheets |