diff --git a/fastplotlib/graphics/features/_data.py b/fastplotlib/graphics/features/_data.py
index 8e9599fa6..3d877bace 100644
--- a/fastplotlib/graphics/features/_data.py
+++ b/fastplotlib/graphics/features/_data.py
@@ -108,6 +108,9 @@ def update_gpu(self):
         """Update the GPU with the buffer"""
         self._update_range(None)
 
+    def __call__(self, *args, **kwargs):
+        return self.buffer.data
+
     def __getitem__(self, item):
         return self.buffer.data[item]
 
@@ -159,6 +162,9 @@ def update_gpu(self):
     def __getitem__(self, item):
         return self._data[item]
 
+    def __call__(self, *args, **kwargs):
+        return self.buffer.data
+
     def __setitem__(self, key, value):
         # make sure supported type, not float64 etc.
         value = to_gpu_supported_dtype(value)