diff --git a/src/main/kotlin/blitz/Either.kt b/src/main/kotlin/blitz/Either.kt
index 023e5ce..56d27b1 100644
--- a/src/main/kotlin/blitz/Either.kt
+++ b/src/main/kotlin/blitz/Either.kt
@@ -38,8 +38,8 @@ class Either<A, B> private constructor(
         Either(a, b.mapNotNull(transform))
 
     override fun toString(): String =
-        if (isA) "Either<A>($a)"
-        else "Either<B>($b)"
+        if (isA) "Either<A>(${a!!.v})"
+        else "Either<B>(${b!!.v})"
 
     companion object {
         fun <A, B> ofA(a: A): Either<A, B> =
diff --git a/src/main/kotlin/blitz/Obj.kt b/src/main/kotlin/blitz/Obj.kt
index 346c85f..d4dea17 100644
--- a/src/main/kotlin/blitz/Obj.kt
+++ b/src/main/kotlin/blitz/Obj.kt
@@ -9,6 +9,9 @@ interface Obj<T> {
         fun <T> of(v: T): Obj<T> =
             object : Obj<T> {
                 override val v: T = v
+
+                override fun toString(): String =
+                    "Obj($v)"
             }
     }
 }
@@ -26,6 +29,9 @@ interface MutObj<T> {
         fun <T> of(v: T): MutObj<T> =
             object : MutObj<T> {
                 override var v: T = v
+
+                override fun toString(): String =
+                    "MutObj($v)"
             }
 
         fun <T> mutex(v: T): MutObj<T> =
@@ -34,6 +40,9 @@ interface MutObj<T> {
                 override var v: T = v
                     get() = lock.use { field }
                     set(inp) = lock.use { field = inp }
+
+                override fun toString(): String =
+                    "MutMutexObj($v)"
             }
     }
 }
\ No newline at end of file