2 x Stihl MSA220C 16 Inch Replacement Chainsaw Chains 3/8 1.3mm 55DL

Helpful Information: 

To check the correct amount of links required remove your original chain from the bar and place on a flat surface, the links or drive teeth are those on the inside of the chain loop that drive along the chainsaw bar and sprocket.

Pitch : Measurement between 3 rivets divided by 2.

Gauge: Measurement between the rails on the guide bar

Drive Links: The number of links that sit in the guide bar