diff --git a/packages/types-codec/src/extended/Range.spec.ts b/packages/types-codec/src/extended/Range.spec.ts
index cb53b752b6..bf13a54211 100644
--- a/packages/types-codec/src/extended/Range.spec.ts
+++ b/packages/types-codec/src/extended/Range.spec.ts
@@ -9,12 +9,7 @@ describe('Range', (): void => {
   let range: Range<U32>;
 
   beforeEach((): void => {
-    const Clazz = Range.with(U32);
-
-    range = new Clazz(
-      registry,
-      [new U32(registry, 1), new U32(registry, 2)]
-    );
+    range = new (Range.with(U32))(registry, [1, 2]);
   });
 
   it('decodes', (): void => {
diff --git a/packages/types-codec/src/extended/Range.ts b/packages/types-codec/src/extended/Range.ts
index fc498b82fa..6b60756681 100644
--- a/packages/types-codec/src/extended/Range.ts
+++ b/packages/types-codec/src/extended/Range.ts
@@ -7,6 +7,10 @@ import { Tuple } from '../base/Tuple';
 
 type RangeType = 'Range' | 'RangeInclusive';
 
+interface Options {
+  rangeName?: RangeType;
+}
+
 /**
  * @name Range
  * @description
@@ -15,19 +19,16 @@ type RangeType = 'Range' | 'RangeInclusive';
 export class Range<T extends INumber> extends Tuple {
   #rangeName: RangeType;
 
-  constructor (registry: Registry, Type: CodecClass<T> | string, value?: AnyTuple, rangeName: RangeType = 'Range') {
-    super(registry, {
-      end: Type,
-      start: Type
-    }, value);
+  constructor (registry: Registry, Type: CodecClass<T> | string, value?: AnyTuple, { rangeName = 'Range' }: Options = {}) {
+    super(registry, [Type, Type], value);
 
     this.#rangeName = rangeName;
   }
 
-  public static override with <T extends INumber> (Types: CodecClass<T> | string): CodecClass<Range<T>> {
+  public static override with <T extends INumber> (Type: CodecClass<T> | string): CodecClass<Range<T>> {
     return class extends Range<T> {
       constructor (registry: Registry, value?: AnyTuple) {
-        super(registry, Types, value);
+        super(registry, Type, value);
       }
     };
   }
diff --git a/packages/types-codec/src/extended/RangeInclusive.ts b/packages/types-codec/src/extended/RangeInclusive.ts
index 0de0608ab9..43ba0096fe 100644
--- a/packages/types-codec/src/extended/RangeInclusive.ts
+++ b/packages/types-codec/src/extended/RangeInclusive.ts
@@ -7,7 +7,7 @@ import { Range } from './Range';
 
 export class RangeInclusive<T extends INumber = INumber> extends Range<T> {
   constructor (registry: Registry, Type: CodecClass<T> | string, value?: AnyTuple) {
-    super(registry, Type, value, 'RangeInclusive');
+    super(registry, Type, value, { rangeName: 'RangeInclusive' });
   }
 
   public static override with <T extends INumber> (Type: CodecClass<T> | string): CodecClass<RangeInclusive<T>> {
diff --git a/packages/types-codec/src/extended/WrapperKeepOpaque.ts b/packages/types-codec/src/extended/WrapperKeepOpaque.ts
index ee82b25316..57bbc1fb6b 100644
--- a/packages/types-codec/src/extended/WrapperKeepOpaque.ts
+++ b/packages/types-codec/src/extended/WrapperKeepOpaque.ts
@@ -11,6 +11,10 @@ import { Bytes } from './Bytes';
 
 type OpaqueName = 'WrapperKeepOpaque' | 'WrapperOpaque';
 
+interface Options {
+  opaqueName?: OpaqueName;
+}
+
 function decodeRaw<T extends Codec> (registry: Registry, typeName: CodecClass<T> | string, value?: unknown): [CodecClass<T>, T | null, AnyU8a] {
   const Type = typeToConstructor(registry, typeName);
 
@@ -38,7 +42,7 @@ export class WrapperKeepOpaque<T extends Codec> extends Bytes {
 
   readonly #opaqueName: OpaqueName;
 
-  constructor (registry: Registry, typeName: CodecClass<T> | string, value?: unknown, opaqueName: OpaqueName = 'WrapperKeepOpaque') {
+  constructor (registry: Registry, typeName: CodecClass<T> | string, value?: unknown, { opaqueName = 'WrapperKeepOpaque' }: Options = {}) {
     const [Type, decoded, u8a] = decodeRaw(registry, typeName, value);
 
     super(registry, u8a);
diff --git a/packages/types-codec/src/extended/WrapperOpaque.ts b/packages/types-codec/src/extended/WrapperOpaque.ts
index 9bbeaeb3a9..41d71fb556 100644
--- a/packages/types-codec/src/extended/WrapperOpaque.ts
+++ b/packages/types-codec/src/extended/WrapperOpaque.ts
@@ -7,7 +7,7 @@ import { WrapperKeepOpaque } from './WrapperKeepOpaque';
 
 export class WrapperOpaque<T extends Codec> extends WrapperKeepOpaque<T> {
   constructor (registry: Registry, typeName: CodecClass<T> | string, value?: unknown) {
-    super(registry, typeName, value, 'WrapperOpaque');
+    super(registry, typeName, value, { opaqueName: 'WrapperOpaque' });
   }
 
   public static override with<T extends Codec> (Type: CodecClass<T> | string): CodecClass<WrapperKeepOpaque<T>> {