diff --git a/internal/chain/chain.go b/internal/chain/chain.go
index 007ab58..bfe13fc 100644
--- a/internal/chain/chain.go
+++ b/internal/chain/chain.go
@@ -5,6 +5,7 @@ import (
 	"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 chain struct {
@@ -18,26 +19,26 @@ func New(command contract.Command) nft.Chain {
 }
 
 func (c *chain) Add(family family.Type, tableName string, chainName string, baseChain chain2.ChainOptions) error {
-	args := []string{"add", "chain", family.String(), tableName, chainName, baseChain.String()}
+	args := nftCommand.ChainAdd(family, tableName, chainName, baseChain)
 	return c.command.Run(args...)
 }
 
 func (c *chain) Create(family family.Type, tableName string, chainName string, baseChain chain2.ChainOptions) error {
-	args := []string{"create", "chain", family.String(), tableName, chainName, baseChain.String()}
+	args := nftCommand.ChainCreate(family, tableName, chainName, baseChain)
 	return c.command.Run(args...)
 }
 
 func (c *chain) Delete(family family.Type, tableName string, chainName string) error {
-	args := []string{"delete", "chain", family.String(), tableName, chainName}
+	args := nftCommand.ChainDelete(family, tableName, chainName)
 	return c.command.Run(args...)
 }
 
 func (c *chain) Clear(family family.Type, tableName string, chainName string) error {
-	args := []string{"flush", "chain", family.String(), tableName, chainName}
+	args := nftCommand.ChainClear(family, tableName, chainName)
 	return c.command.Run(args...)
 }
 
 func (c *chain) Rename(family family.Type, tableName string, oldChainName string, newChainName string) error {
-	args := []string{"rename", "chain", family.String(), tableName, oldChainName, newChainName}
+	args := nftCommand.ChainRename(family, tableName, oldChainName, newChainName)
 	return c.command.Run(args...)
 }
diff --git a/internal/pkg/nft/chain.go b/internal/pkg/nft/chain.go
new file mode 100644
index 0000000..d44d0d8
--- /dev/null
+++ b/internal/pkg/nft/chain.go
@@ -0,0 +1,26 @@
+package nft
+
+import (
+	chain2 "git.kor-elf.net/kor-elf-shield/go-nftables-client/chain"
+	"git.kor-elf.net/kor-elf-shield/go-nftables-client/family"
+)
+
+func ChainAdd(family family.Type, tableName string, chainName string, baseChain chain2.ChainOptions) []string {
+	return []string{"add", "chain", family.String(), tableName, chainName, baseChain.String()}
+}
+
+func ChainCreate(family family.Type, tableName string, chainName string, baseChain chain2.ChainOptions) []string {
+	return []string{"create", "chain", family.String(), tableName, chainName, baseChain.String()}
+}
+
+func ChainDelete(family family.Type, tableName string, chainName string) []string {
+	return []string{"delete", "chain", family.String(), tableName, chainName}
+}
+
+func ChainClear(family family.Type, tableName string, chainName string) []string {
+	return []string{"flush", "chain", family.String(), tableName, chainName}
+}
+
+func ChainRename(family family.Type, tableName string, oldChainName string, newChainName string) []string {
+	return []string{"rename", "chain", family.String(), tableName, oldChainName, newChainName}
+}