ALM Chainsaw chain (3/8" .050 x 56DL)
Check that the type / shape of the chain is the same as the image:
If your chain does not match this shape, look at the other chainsaw chain shapes and choose the right chain from our "Choose the right chain guide" in the Chainsaw Chains category.
NOTE
For Ryobi owners, please check the suffix of your model number carefully, as some models with a different letter at the end were manufactured to require a 57 link chain