diff --git a/utils/binary/builder.go b/utils/binary/builder.go
index f3d062b6..e89ae5c1 100644
--- a/utils/binary/builder.go
+++ b/utils/binary/builder.go
@@ -1,6 +1,7 @@
 package binary
 
 import (
+	"bytes"
 	"encoding/binary"
 	"io"
 	"math"
@@ -45,6 +46,17 @@ func (b *Builder) ToBytes() (data []byte) {
 	return
 }
 
+func (b *Builder) Buffer() (buffer *bytes.Buffer) {
+	b.p(func(ub *pbuf.UserBuffer[teacfg]) {
+		buffer = &ub.Buffer
+	})
+	return
+}
+
+func (b *Builder) ManualDestroy() {
+	(*orbyte.Item[pbuf.UserBuffer[teacfg]])(b).ManualDestroy()
+}
+
 // Pack TLV with tea encryption if key is set
 //
 // GC 安全, 返回的数据在 Builder 被销毁之后仍能被正确读取,
diff --git a/utils/binary/pool.go b/utils/binary/pool.go
index d73c8cdf..484f8dc8 100644
--- a/utils/binary/pool.go
+++ b/utils/binary/pool.go
@@ -25,6 +25,11 @@ func NewBuilder(key ...byte) *Builder {
 	return (*Builder)(b)
 }
 
+// PutBuilder
+func PutBuilder(b *Builder) {
+	b.ManualDestroy()
+}
+
 var gzipPool = sync.Pool{
 	New: func() any {
 		buf := new(bytes.Buffer)