diff --git a/src/ffi/array.rs b/src/ffi/array.rs
index 76df63ceb5a..5ebdf5d7fcd 100644
--- a/src/ffi/array.rs
+++ b/src/ffi/array.rs
@@ -243,6 +243,13 @@ fn buffer_offset(array: &ArrowArray, data_type: &DataType, i: usize) -> usize {
     use PhysicalType::*;
     match (data_type.to_physical_type(), i) {
         (LargeUtf8, 2) | (LargeBinary, 2) | (Utf8, 2) | (Binary, 2) => 0,
+        (FixedSizeBinary, 1) => {
+            if let DataType::FixedSizeBinary(size) = data_type.to_logical_type() {
+                (array.offset as usize) * *size
+            } else {
+                unreachable!()
+            }
+        }
         _ => array.offset as usize,
     }
 }
diff --git a/src/ffi/schema.rs b/src/ffi/schema.rs
index 3ab3b9edcf8..e06ab4184cf 100644
--- a/src/ffi/schema.rs
+++ b/src/ffi/schema.rs
@@ -306,6 +306,7 @@ unsafe fn to_data_type(schema: &ArrowSchema) -> Result<DataType> {
                     let size = size_raw
                         .parse::<usize>()
                         .map_err(|_| Error::OutOfSpec("size is not a valid integer".to_string()))?;
+                    println!("schema: {}", size);
                     DataType::FixedSizeBinary(size)
                 }
                 ["+w", size_raw] => {
diff --git a/tests/it/ffi/data.rs b/tests/it/ffi/data.rs
index 63a4489a0df..39c94001143 100644
--- a/tests/it/ffi/data.rs
+++ b/tests/it/ffi/data.rs
@@ -81,6 +81,18 @@ fn u32() -> Result<()> {
     test_round_trip(data)
 }
 
+#[test]
+fn decimal() -> Result<()> {
+    let data = Int128Array::from_slice(&[1, 0, 2, 0]);
+    test_round_trip(data)
+}
+
+#[test]
+fn decimal_nullable() -> Result<()> {
+    let data = Int128Array::from(&[Some(1), None, Some(2), None]);
+    test_round_trip(data)
+}
+
 #[test]
 fn timestamp_tz() -> Result<()> {
     let data = Int64Array::from(&vec![Some(2), None, None]).to(DataType::Timestamp(
@@ -128,6 +140,26 @@ fn large_binary() -> Result<()> {
     test_round_trip(data)
 }
 
+#[test]
+fn fixed_size_binary() -> Result<()> {
+    let data = FixedSizeBinaryArray::new(
+        DataType::FixedSizeBinary(2),
+        vec![1, 2, 3, 4, 5, 6].into(),
+        None,
+    );
+    test_round_trip(data)
+}
+
+#[test]
+fn fixed_size_binary_nullable() -> Result<()> {
+    let data = FixedSizeBinaryArray::new(
+        DataType::FixedSizeBinary(2),
+        vec![1, 2, 3, 4, 5, 6].into(),
+        Some([true, true, false].into()),
+    );
+    test_round_trip(data)
+}
+
 #[test]
 fn list() -> Result<()> {
     let data = vec![
@@ -144,6 +176,22 @@ fn list() -> Result<()> {
     test_round_trip(array)
 }
 
+#[test]
+fn large_list() -> Result<()> {
+    let data = vec![
+        Some(vec![Some(1i32), Some(2), Some(3)]),
+        None,
+        Some(vec![Some(4), None, Some(6)]),
+    ];
+
+    let mut array = MutableListArray::<i64, MutablePrimitiveArray<i32>>::new();
+    array.try_extend(data)?;
+
+    let array: ListArray<i64> = array.into();
+
+    test_round_trip(array)
+}
+
 #[test]
 fn fixed_list() -> Result<()> {
     let data = vec![
@@ -231,7 +279,11 @@ fn schema() -> Result<()> {
 fn extension() -> Result<()> {
     let field = Field::new(
         "a",
-        DataType::Extension("a".to_string(), Box::new(DataType::Int32), None),
+        DataType::Extension(
+            "a".to_string(),
+            Box::new(DataType::Int32),
+            Some("bla".to_string()),
+        ),
         true,
     );
     test_round_trip_schema(field)