diff --git a/server/routers/dry-wash/arm-master.js b/server/routers/dry-wash/arm-master.js
new file mode 100644
index 0000000..7288d47
--- /dev/null
+++ b/server/routers/dry-wash/arm-master.js
@@ -0,0 +1,87 @@
+const router = require('express').Router()
+const {MasterModel} = require('./model/master')
+const mongoose = require("mongoose")
+
+
+router.get('/masters', async (req, res,next) => {
+    try {
+        const master = await MasterModel.find({})
+        res.status(200).send({success: true, body: master})
+    } catch (error) {
+        next(error)
+    }
+})
+
+router.delete('/masters/:id', async (req, res,next) => {
+    const { id } = req.params;
+
+    if (!mongoose.Types.ObjectId.isValid(id)){
+        throw new Error('ID is required')
+    }
+
+    try {
+        const master = await MasterModel.findByIdAndDelete(id, {
+            new: true,
+        });
+        if (!master) {
+            throw new Error('master not found')
+        }
+        res.status(200).send({success: true, body: master})
+    } catch (error) {
+        next(error)
+    }
+})
+
+
+router.post('/masters',  async (req, res,next) => {
+
+    const {name, phone} =  req.body
+
+    if (!name || !phone ){
+        throw new Error('Enter name and phone')
+    }
+    try {
+        const master =  await MasterModel.create({name, phone})
+        res.status(200).send({success: true, body: master})
+    } catch (error) {
+        next(error)
+    }
+})
+
+
+router.patch('/masters/:id', async (req, res, next) => {
+    const { id } = req.params;
+
+    if (!mongoose.Types.ObjectId.isValid(id)) {
+        throw new Error('ID is required')
+    }
+
+    const { name, phone } = req.body;
+
+    if (!name && !phone) {
+        throw new Error('Enter name and phone')
+    }
+
+
+    try {
+        const updateData = {};
+        if (name) updateData.name = name;
+        if (phone) updateData.phone = phone;
+
+        const master = await MasterModel.findByIdAndUpdate(
+            id,
+            updateData,
+            { new: true }
+        );
+
+        if (!master) {
+            throw new Error('master not found')
+        }
+
+        res.status(200).send({ success: true, body: master });
+    } catch (error) {
+        next(error);
+    }
+});
+
+module.exports = router
diff --git a/server/routers/dry-wash/arm-orders.js b/server/routers/dry-wash/arm-orders.js
new file mode 100644
index 0000000..2f4be72
--- /dev/null
+++ b/server/routers/dry-wash/arm-orders.js
@@ -0,0 +1,9 @@
+const router = require('express').Router()
+
+router.get('/orders', (req, res) => {
+    res
+        .status(200)
+        .send(require(`./json/arm-orders/success.json`))
+})
+
+module.exports = router
diff --git a/server/routers/dry-wash/arm.js b/server/routers/dry-wash/arm.js
deleted file mode 100644
index e0a00e8..0000000
--- a/server/routers/dry-wash/arm.js
+++ /dev/null
@@ -1,37 +0,0 @@
-const router = require('express').Router()
-const {MasterModel} = require('./model/master')
-
-router.post('/master',  async (req, res,next) => {
-
-   const {name, phone} =  req.body
-
-   if (!name || !phone ){
-        throw new Error('Enter name  and phone')
-   }
-    try {
-        const master =  await MasterModel.create({name, phone})
-        res.status(200).send({success: true, body: master})
-    } catch (error) {
-        next(error)
-    }
-})
-
-
-
-router.get('/masters', async (req, res,next) => {
-    try {
-        const master = await MasterModel.find({})
-        res.status(200).send({success: true, body: master})
-    } catch (error) {
-        next(error)
-    }
-})
-
-
-router.get('/orders', (req, res) => {
-    res
-        .status(200)
-        .send(require(`./json/arm-orders/success.json`))
-})
-
-module.exports = router
diff --git a/server/routers/dry-wash/index.js b/server/routers/dry-wash/index.js
index e9f1aaf..202295b 100644
--- a/server/routers/dry-wash/index.js
+++ b/server/routers/dry-wash/index.js
@@ -1,8 +1,10 @@
 const router = require('express').Router()
-const armRouter  = require('./arm')
+const armMasterRouter  = require('./arm-master')
+const armOrdersRouter  = require('./arm-orders')
 
 
-router.use('/arm', armRouter)
+router.use('/arm', armMasterRouter)
+router.use('/arm', armOrdersRouter)
 
 
 module.exports = router
diff --git a/server/routers/dry-wash/postman/dry-wash.postman_collection.json b/server/routers/dry-wash/postman/dry-wash.postman_collection.json
index 685bf02..50ad33a 100644
--- a/server/routers/dry-wash/postman/dry-wash.postman_collection.json
+++ b/server/routers/dry-wash/postman/dry-wash.postman_collection.json
@@ -16,7 +16,7 @@
 						"header": [],
 						"body": {
 							"mode": "raw",
-							"raw": "{\n    \"name\":\"Anton\",\n    \"phone\": \"89172420577\"\n}",
+							"raw": "{\n    \"name\":\"Anto234\",\n    \"phone\": \"89172420577\"\n}",
 							"options": {
 								"raw": {
 									"language": "json"
@@ -42,13 +42,60 @@
 						"method": "GET",
 						"header": [],
 						"url": {
-							"raw": "{{host}}/arm/masters",
+							"raw": "{{host}}/arm/master-list",
 							"host": [
 								"{{host}}"
 							],
 							"path": [
 								"arm",
-								"masters"
+								"master-list"
+							]
+						}
+					},
+					"response": []
+				},
+				{
+					"name": "delete master",
+					"request": {
+						"method": "DELETE",
+						"header": [],
+						"url": {
+							"raw": "{{host}}/arm/masters/{{id}}",
+							"host": [
+								"{{host}}"
+							],
+							"path": [
+								"arm",
+								"masters",
+								"{{id}}"
+							]
+						}
+					},
+					"response": []
+				},
+				{
+					"name": "update master",
+					"request": {
+						"method": "PATCH",
+						"header": [],
+						"body": {
+							"mode": "raw",
+							"raw": "{\n    \"name\":\"Anto234\",\n    \"phone\": \"89172420577\"\n}",
+							"options": {
+								"raw": {
+									"language": "json"
+								}
+							}
+						},
+						"url": {
+							"raw": "{{host}}/arm/masters/{{id}}",
+							"host": [
+								"{{host}}"
+							],
+							"path": [
+								"arm",
+								"masters",
+								"{{id}}"
 							]
 						}
 					},
@@ -57,4 +104,4 @@
 			]
 		}
 	]
-}
+}
\ No newline at end of file