diff --git a/internal/pkg/nft/rule.go b/internal/pkg/nft/rule.go
new file mode 100644
index 0000000..178edc2
--- /dev/null
+++ b/internal/pkg/nft/rule.go
@@ -0,0 +1,30 @@
+package nft
+
+import (
+	"strconv"
+
+	"git.kor-elf.net/kor-elf-shield/go-nftables-client/family"
+)
+
+func RuleAdd(family family.Type, tableName string, chainName string, expr ...string) []string {
+	args := []string{"add", "rule", family.String(), tableName, chainName}
+	args = append(args, expr...)
+	return args
+}
+
+func RuleInsert(family family.Type, tableName string, chainName string, expr ...string) []string {
+	args := []string{"insert", "rule", family.String(), tableName, chainName}
+	args = append(args, expr...)
+	return args
+}
+
+func RuleReplace(family family.Type, tableName string, chainName string, handle uint64, expr ...string) []string {
+	args := []string{"replace", "rule", family.String(), tableName, chainName, "handle", strconv.Itoa(int(handle))}
+	args = append(args, expr...)
+	return args
+}
+
+func RuleDelete(family family.Type, tableName string, chainName string, handle uint64) []string {
+	args := []string{"delete", "rule", family.String(), tableName, chainName, "handle", strconv.Itoa(int(handle))}
+	return args
+}
diff --git a/internal/rule/rule.go b/internal/rule/rule.go
index 8ab2b51..1a072a5 100644
--- a/internal/rule/rule.go
+++ b/internal/rule/rule.go
@@ -1,11 +1,10 @@
 package rule
 
 import (
-	"strconv"
-
 	"git.kor-elf.net/kor-elf-shield/go-nftables-client/contract"
 	"git.kor-elf.net/kor-elf-shield/go-nftables-client/contract/nft"
 	"git.kor-elf.net/kor-elf-shield/go-nftables-client/family"
+	nftCommand "git.kor-elf.net/kor-elf-shield/go-nftables-client/internal/pkg/nft"
 )
 
 type rule struct {
@@ -19,24 +18,21 @@ func New(command contract.Command) nft.Rule {
 }
 
 func (r *rule) Add(family family.Type, tableName string, chainName string, expr ...string) error {
-	args := []string{"add", "rule", family.String(), tableName, chainName}
-	args = append(args, expr...)
+	args := nftCommand.RuleAdd(family, tableName, chainName, expr...)
 	return r.command.Run(args...)
 }
 
 func (r *rule) Insert(family family.Type, tableName string, chainName string, expr ...string) error {
-	args := []string{"insert", "rule", family.String(), tableName, chainName}
-	args = append(args, expr...)
+	args := nftCommand.RuleInsert(family, tableName, chainName, expr...)
 	return r.command.Run(args...)
 }
 
 func (r *rule) Replace(family family.Type, tableName string, chainName string, handle uint64, expr ...string) error {
-	args := []string{"replace", "rule", family.String(), tableName, chainName, "handle", strconv.Itoa(int(handle))}
-	args = append(args, expr...)
+	args := nftCommand.RuleReplace(family, tableName, chainName, handle, expr...)
 	return r.command.Run(args...)
 }
 
 func (r *rule) Delete(family family.Type, tableName string, chainName string, handle uint64) error {
-	args := []string{"delete", "rule", family.String(), tableName, chainName, "handle", strconv.Itoa(int(handle))}
+	args := nftCommand.RuleDelete(family, tableName, chainName, handle)
 	return r.command.Run(args...)
 }