diff --git a/Blocks-Sample-TensorFlow-Object-Detection-Op-Mode.md b/Blocks-Sample-TensorFlow-Object-Detection-Op-Mode.md
index 85215b5..2bcbc1e 100644
--- a/Blocks-Sample-TensorFlow-Object-Detection-Op-Mode.md
+++ b/Blocks-Sample-TensorFlow-Object-Detection-Op-Mode.md
@@ -108,4 +108,5 @@ When the example Op Mode is no longer active (i.e., when the user has pressed th
 
 ### Using a Custom Inference Model
 
+Users with advanced programming knowledge can use Google's [TensorFlow Object Detection API](https://github.com/tensorflow/models/tree/master/research/object_detection) to create their own custom inference model.  If you have a custom inference model, you can import that model into a Blocks op mode, and use it to look for and track custom targets.