diff --git a/src/TZodSchemaClass.ts b/src/TZodSchemaClass.ts
index 7762a7e..be2a64a 100644
--- a/src/TZodSchemaClass.ts
+++ b/src/TZodSchemaClass.ts
@@ -41,14 +41,21 @@ export type TZodSchemaClass<
         readonly schema:         Schema
         readonly defaultValues:  DefaultValues
 
-        newPromise<Self extends ConcreteClass<any>>(
+        instantiate<Self extends ConcreteClass<any>>(
+            this: Self,
+            ...[values, params]: NewZodSchemaInstanceArgs<
+                NewZodSchemaInstanceInput<Values, DefaultValues>
+            >
+        ): InstanceType<Self>
+
+        instantiatePromise<Self extends ConcreteClass<any>>(
             this: Self,
             ...[values, params]: NewZodSchemaInstanceArgs<
                 NewZodSchemaInstanceInput<Values, DefaultValues>
             >
         ): Promise<InstanceType<Self>>
 
-        newEffect<Self extends ConcreteClass<any>>(
+        instantiateEffect<Self extends ConcreteClass<any>>(
             this: Self,
             ...[values, params]: NewZodSchemaInstanceArgs<
                 NewZodSchemaInstanceInput<Values, DefaultValues>
diff --git a/src/ZodSchemaClass.ts b/src/ZodSchemaClass.ts
index 31513db..3664b57 100644
--- a/src/ZodSchemaClass.ts
+++ b/src/ZodSchemaClass.ts
@@ -4,10 +4,7 @@ import { DefinedDefaultValuesTag, NewZodSchemaInstanceArgs, NewZodSchemaInstance
 import { StaticMembers } from "./util"
 
 
-type ExtendableClass = AbstractClass<{
-    schema?:         never
-    defaultValues?:  never
-}, []> & {
+type ExtendableClass = AbstractClass<any, []> & {
     schema?:         never
     defaultValues?:  never
 }
@@ -55,7 +52,17 @@ export function ZodSchemaClassOf<
             Object.assign(this, values)
         }
 
-        static async newPromise(
+        static async instantiate(
+            ...[values, params]: NewZodSchemaInstanceArgs<
+                NewZodSchemaInstanceInput<Values, DefaultValues>
+            >
+        ) {
+            return new this(
+                this.schema.parse({ ...this.defaultValues, ...values }, params)
+            )
+        }
+
+        static async instantiatePromise(
             ...[values, params]: NewZodSchemaInstanceArgs<
                 NewZodSchemaInstanceInput<Values, DefaultValues>
             >
diff --git a/src/tests.ts b/src/tests.ts
index c314056..7f4befd 100644
--- a/src/tests.ts
+++ b/src/tests.ts
@@ -2,7 +2,11 @@ import { z } from "zod"
 import { ZodSchemaClassOf, defineDefaultValues } from "."
 
 
-class Test extends ZodSchemaClassOf(Object, {
+class Root {
+}
+
+
+class Test extends ZodSchemaClassOf(Root, {
     schema: z.object({
         id: z.bigint(),
         name: z.string(),
@@ -11,11 +15,11 @@ class Test extends ZodSchemaClassOf(Object, {
     defaultValues: defineDefaultValues({ id: -1n }),
 }) {}
 Test.defaultValues
-const inst = await Test.newPromise({ id: 1n, name: "" })
+const inst = await Test.instantiatePromise({ id: 1n, name: "" })
 // Test.extend()
 
 console.log(inst)
 
-// class ChildTest extends Test {}
+class ChildTest extends Test {}
 
-// ChildTest.newPromise()
+ChildTest.instantiate({ name: "" })