Used primarily by land surveyors and are also known as chaining pins.
- 14 inch (35.5 cm) length
- Made of 3/16-in spring steel, heat treated
- Powder-painted red and white, alternating at each 1 inch (25.4 mm)
- Eleven (11) survey marking pins per box
- Weight: 1.6 lb (73 kg) per 11 pins
