diff --git a/luma/__import__.py b/luma/__import__.py
index 52207cf..dbc41ea 100644
--- a/luma/__import__.py
+++ b/luma/__import__.py
@@ -141,6 +141,7 @@
     IncepResBlock,
     ResNetBlock,
     XceptionBlock,
+    MobileNetBlock,
 )
 from luma.neural.model import (
     SimpleMLP,
@@ -349,7 +350,7 @@
     ConvBlock1D, ConvBlock2D, ConvBlock3D,
     SeparableConv1D, SeparableConv2D, SeparableConv3D,
     DenseBlock, IncepBlock, IncepResBlock, ResNetBlock,
-    XceptionBlock
+    XceptionBlock, MobileNetBlock
 
     LayerNode, LayerGraph
 
diff --git a/luma/neural/block/__init__.py b/luma/neural/block/__init__.py
index 1818896..f5ce3e8 100644
--- a/luma/neural/block/__init__.py
+++ b/luma/neural/block/__init__.py
@@ -16,7 +16,6 @@
 from luma.interface.typing import ClassType
 from luma.interface.util import InitUtil
 
-from luma.neural.layer import *
 from luma.neural.block import (
     incep_v1,
     incep_v2,
@@ -42,13 +41,14 @@
     "IncepResBlock",
     "ResNetBlock",
     "XceptionBlock",
+    "MobileNetBlock",
 )
 
 
 @dataclass
 class ConvBlockArgs:
     filter_size: Tuple[int, ...] | int
-    activation: Activation.FuncType
+    activation: callable
     optimizer: Optimizer | None = None
     initializer: InitUtil.InitStr = None
     padding: Tuple[int, ...] | int | Literal["same", "valid"] = "same"
@@ -359,7 +359,7 @@ class SeparableConv3D(standard._SeparableConv3D):
 
 @dataclass
 class DenseBlockArgs:
-    activation: Activation.FuncType
+    activation: callable
     optimizer: Optimizer | None = None
     initializer: InitUtil.InitStr = None
     lambda_: float = 0.0
@@ -410,7 +410,7 @@ class DenseBlock(standard._DenseBlock):
 
 @dataclass
 class BaseBlockArgs:
-    activation: Activation.FuncType
+    activation: callable
     optimizer: Optimizer | None = None
     initializer: InitUtil.InitStr = None
     lambda_: float = 0.0
@@ -868,4 +868,7 @@ class Exit(xception._Exit):
         """
 
 
-class InvertedResBlock(mobile._InvertedRes): ...
+@ClassType.non_instantiable()
+class MobileNetBlock:
+    
+    class InvertedRes(mobile._InvertedRes): ...
diff --git a/luma/neural/block/mobile.py b/luma/neural/block/mobile.py
index 6213f0e..78f1b1f 100644
--- a/luma/neural/block/mobile.py
+++ b/luma/neural/block/mobile.py
@@ -57,7 +57,7 @@ def __init__(
         if self.expand != 1:
             self[self.rt_].clear()
             self[self.rt_].append(self.pw_)
-            self.graph[self.pw] = [self.dw_pw_lin]
+            self.graph[self.pw_] = [self.dw_pw_lin]
 
         if self.do_shortcut:
             self[self.rt_].append(self.tm_)