- Solid block center vial magnified for easier reading and accurate to 0.0005in/in and 0.5mm/m
- Enlarged plumb vials over 25% larger than standard vials for easy reading
- Plumb vials feature clear covers for protection and easy cleaning
- Shock-absorbing end caps protect level
- New concave body design provides durability and comfortable handling
- Non magnetic
| Model | Length | # of vials |
| cm | ||
| Stanley 43-102 Classic Box Level | 40 | 2 |
| Stanley 43-103 Classic Box Level | 60 | 2 |
| Stanley 43-104 Classic Box Level | 80 | 2 |
| Stanley 43-105 Classic Box Level | 100 | 3 |
| Stanley 43-106 Classic Box Level | 120 | 3 |
| Stanley 43-107 Classic Box Level | 150 | 3 |
