diff --git a/common/src/main/java/dev/architectury/transfer/TransferHandler.java b/common/src/main/java/dev/architectury/transfer/TransferHandler.java
index d13ae29b..1b0749b6 100644
--- a/common/src/main/java/dev/architectury/transfer/TransferHandler.java
+++ b/common/src/main/java/dev/architectury/transfer/TransferHandler.java
@@ -23,6 +23,7 @@ import dev.architectury.fluid.FluidStack;
 import net.minecraft.world.item.ItemStack;
 import org.jetbrains.annotations.ApiStatus;
 
+import java.util.function.Consumer;
 import java.util.stream.Stream;
 
 /**
@@ -65,6 +66,13 @@ public interface TransferHandler<T> extends TransferView<T> {
      */
     Stream<ResourceView<T>> getContents();
     
+    default void withContents(Consumer<Iterable<ResourceView<T>>> consumer) {
+        try (Stream<ResourceView<T>> stream = getContents()) {
+            Iterable<ResourceView<T>> iterable = stream::iterator;
+            consumer.accept(iterable);
+        }
+    }
+    
     /**
      * Returns the size of the handler.
      * This may be extremely expensive to compute, avoid if you can.
diff --git a/common/src/main/java/dev/architectury/transfer/item/wrapper/ContainerTransferHandler.java b/common/src/main/java/dev/architectury/transfer/item/wrapper/ContainerTransferHandler.java
index cf53de9a..42944670 100644
--- a/common/src/main/java/dev/architectury/transfer/item/wrapper/ContainerTransferHandler.java
+++ b/common/src/main/java/dev/architectury/transfer/item/wrapper/ContainerTransferHandler.java
@@ -29,11 +29,11 @@ import net.minecraft.world.item.ItemStack;
 import java.util.AbstractList;
 import java.util.List;
 
-public class ContainerTransferHandler implements CombinedItemTransferHandler, CombinedSingleTransferHandler<ItemStack> {
-    protected final Container container;
+public class ContainerTransferHandler<C extends Container> implements CombinedItemTransferHandler, CombinedSingleTransferHandler<ItemStack> {
+    public final C container;
     private List<SingleTransferHandler<ItemStack>> handlers = null;
     
-    public ContainerTransferHandler(Container container) {
+    public ContainerTransferHandler(C container) {
         this.container = container;
     }
     
diff --git a/common/src/main/java/dev/architectury/transfer/item/wrapper/WorldlyContainerTransferHandler.java b/common/src/main/java/dev/architectury/transfer/item/wrapper/WorldlyContainerTransferHandler.java
index 9c3d41fb..e18590ec 100644
--- a/common/src/main/java/dev/architectury/transfer/item/wrapper/WorldlyContainerTransferHandler.java
+++ b/common/src/main/java/dev/architectury/transfer/item/wrapper/WorldlyContainerTransferHandler.java
@@ -28,17 +28,16 @@ import net.minecraft.world.item.ItemStack;
 import java.util.Arrays;
 import java.util.List;
 
-public class WorldlyContainerTransferHandler extends ContainerTransferHandler {
+public class WorldlyContainerTransferHandler<C extends WorldlyContainer> extends ContainerTransferHandler<C> {
     protected final Direction direction;
     
-    public WorldlyContainerTransferHandler(WorldlyContainer container, Direction direction) {
+    public WorldlyContainerTransferHandler(C container, Direction direction) {
         super(container);
         this.direction = direction;
     }
     
     @Override
     protected List<SingleTransferHandler<ItemStack>> createHandlers() {
-        WorldlyContainer container = (WorldlyContainer) this.container;
         int[] slots = container.getSlotsForFace(this.direction);
         SingleTransferHandler<ItemStack>[] handlers = new SingleTransferHandler[slots.length];
         for (int i = 0; i < slots.length; ++i) {
diff --git a/common/src/main/java/dev/architectury/transfer/wrapper/CombinedSingleTransferHandler.java b/common/src/main/java/dev/architectury/transfer/wrapper/CombinedSingleTransferHandler.java
index 4973138f..95dc8dec 100644
--- a/common/src/main/java/dev/architectury/transfer/wrapper/CombinedSingleTransferHandler.java
+++ b/common/src/main/java/dev/architectury/transfer/wrapper/CombinedSingleTransferHandler.java
@@ -24,6 +24,7 @@ import dev.architectury.transfer.TransferHandler;
 import dev.architectury.transfer.wrapper.single.SingleTransferHandler;
 
 import java.util.List;
+import java.util.function.Consumer;
 import java.util.stream.Stream;
 
 /**
@@ -46,6 +47,11 @@ public interface CombinedSingleTransferHandler<T> extends CombinedTransferHandle
         return (Stream<ResourceView<T>>) (Stream<? super SingleTransferHandler<T>>) getParts().stream();
     }
     
+    @Override
+    default void withContents(Consumer<Iterable<ResourceView<T>>> consumer) {
+        consumer.accept((Iterable<ResourceView<T>>) (Iterable<? super SingleTransferHandler<T>>) getParts());
+    }
+    
     @Override
     @Deprecated
     default int getContentsSize() {
@@ -54,7 +60,7 @@ public interface CombinedSingleTransferHandler<T> extends CombinedTransferHandle
     
     @Override
     @Deprecated
-    default ResourceView<T> getContent(int index) {
+    default SingleTransferHandler<T> getContent(int index) {
         return getParts().get(index);
     }
 }