Pitch: 0.5 inches (12.7 mm).
Roller Diameter: 8.51mm
Width between inner plates: 7.75mm
Pin Diameter: 4.45mm;
Pin Length: 16.7mm
Inner plate depth: 11.8mm
Plate Thickness: 0.06 inch (1.6 mm).
Material: Spring Steel
Total length per piece: 1500mm
Features: Very easy to use and very easy to attach to the chain.