diff --git a/spring_online_calculator/src/main/java/labWork/premium_store/model/Tank.java b/spring_online_calculator/src/main/java/labWork/premium_store/model/Tank.java
index ea271e8..f3b2ae1 100644
--- a/spring_online_calculator/src/main/java/labWork/premium_store/model/Tank.java
+++ b/spring_online_calculator/src/main/java/labWork/premium_store/model/Tank.java
@@ -1,7 +1,9 @@
 package labWork.premium_store.model;
 
 import javax.persistence.*;
+import java.util.ArrayList;
 import java.util.List;
+import java.util.Objects;
 
 @Entity
 public class Tank {
@@ -20,18 +22,23 @@ public class Tank {
     @JoinColumn(name = "level_id")
     private Level level;
 
+    @Column(nullable = false)
+    private int cost;
+
+    //реализация двунаправленной связи мнокие-ко-многим
     @ManyToMany
     @JoinTable(name = "tanks_of_clients",
             joinColumns = @JoinColumn(name = "tank_fk"),
             inverseJoinColumns = @JoinColumn(name = "client_fk"))
     private List<Client> clients;
 
-    @Column(nullable = false)
-    private int cost;
-
     public Tank() {
     }
 
+    public Long getId(){
+        return id;
+    }
+
     public Tank(String name, int cost) {
         this.name = name;
         this.cost = cost;
@@ -53,35 +60,57 @@ public class Tank {
         this.cost = cost;
     }
 
-    public List<OrderProducts> getProducts() {
-        return products;
+    public Level getLevel() {
+        return level;
     }
 
-    public void setProducts(List<OrderProducts> products) {
-        this.products = products;
+    public void setLevel(Level level) {
+        this.level = level;
     }
 
-    public void addProduct(OrderProducts orderProducts){
-        if  (products == null){
-            this.products = new ArrayList<>();
+    public Nation getNation() {
+        return nation;
+    }
+
+    public void setNation(Nation nation) {
+        this.nation = nation;
+    }
+
+    public List<Client> getClients() {
+        return clients;
+    }
+
+    public void setClients(List<Client> clients) {
+        this.clients = clients;
+    }
+
+    public void addClient(Client newClient){
+        if  (clients == null){
+            this.clients = new ArrayList<>();
         }
-        if (!products.contains(orderProducts))
-            this.products.add(orderProducts);
+
+        if (!clients.contains(newClient))
+            this.clients.add(newClient);
     }
-    public void removeProducts(OrderProducts orderProducts){
-        if (products.contains(orderProducts))
-            this.products.remove(orderProducts);
+
+    public void removeClient(Client remClient){
+        if (clients.contains(remClient))
+            this.clients.remove(remClient);
     }
 
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;
-        if (!(o instanceof Order order)) return false;
-        return Objects.equals(getId(), order.getId()) && Objects.equals(getDate(), order.getDate()) && Objects.equals(getPrice(), order.getPrice());
+
+        if (!(o instanceof Tank tank)) return false;
+
+        return Objects.equals(getId(), tank.getId()) && Objects.equals(getName(), tank.getName())
+                && Objects.equals(getCost(), tank.getCost()) && Objects.equals(getClients(), tank.getClients())
+                && Objects.equals(getLevel(), tank.getLevel());
     }
 
     @Override
     public int hashCode() {
-        return Objects.hash(getId(), getDate(), getPrice());
+        return Objects.hash(getId(), getName(), getLevel(), getClients(), getCost());
     }
 }