diff --git a/src/Bag.cpp b/src/Bag.cpp
new file mode 100644
index 0000000..1ae9630
--- /dev/null
+++ b/src/Bag.cpp
@@ -0,0 +1,77 @@
+//
+// Created by gustavomiranda on 27/09/24.
+//
+
+#include "Bag.h"
+
+void Bag::incrementUsedCapacity() {
+    usedCapacity++;
+}
+
+void Bag::decrementUsedCapacity() {
+    usedCapacity--;
+}
+
+void Bag::setMaxCapacity(int n) {
+    maxCapacity = n;
+}
+
+int Bag::getMaxCapacity() {
+    return maxCapacity;
+}
+
+int Bag::getUsedCapacity() {
+    return usedCapacity;
+}
+
+int Bag::getAvailableCapacity() {
+    return getMaxCapacity() - getUsedCapacity();
+}
+
+void Bag::addItem(DrugTypes item) {
+    if (getAvailableCapacity() > 0){
+        items[item] += 1;
+        incrementUsedCapacity();
+    }
+}
+
+void Bag::addMultipleItems(DrugTypes item, int n) {
+    if(getAvailableCapacity() >= n && n > 0){
+        for (int i = 0; i < n; i++){
+            addItem(item);
+        }
+    }
+
+}
+
+int Bag::getAmountInBag(DrugTypes item) {
+    return items[item];
+}
+
+void Bag::subtractItem(DrugTypes item) {
+    if (items[item] >= 1){
+        items[item] -= 1;
+        decrementUsedCapacity();
+
+    }
+}
+
+void Bag::subtractMultipleItems(DrugTypes item, int n) {
+    if (items[item] >= n ){
+        for (int i = 0;i < n;i++){
+            subtractItem(item);
+        }
+    }
+}
+
+Bag::Bag(int maxcapacity) {
+    setMaxCapacity(maxcapacity);
+    items[Acid] = 0;
+    items[Weed] = 0;
+    items[Speed] = 0;
+    items[Cocaine] = 0;
+    items[Ludes] = 0;
+    items[Heroin] = 0;
+}
+
+Bag::~Bag() = default;
diff --git a/src/include/Bag.h b/src/include/Bag.h
new file mode 100644
index 0000000..512465f
--- /dev/null
+++ b/src/include/Bag.h
@@ -0,0 +1,41 @@
+//
+// Created by gustavomiranda on 27/09/24.
+//
+
+#ifndef DRUGWARS_BAG_H
+#define DRUGWARS_BAG_H
+
+#include <map>
+
+enum DrugTypes{
+    Acid,
+    Weed,
+    Speed,
+    Cocaine,
+    Ludes,
+    Heroin
+};
+
+class Bag {
+private:
+    int maxCapacity;
+    int usedCapacity;
+    std::map<DrugTypes,int> items;
+    void incrementUsedCapacity();
+    void decrementUsedCapacity();
+    void setMaxCapacity(int n);
+public:
+    Bag(int maxcapacity);
+    ~Bag();
+    int getMaxCapacity();
+    int getUsedCapacity();
+    int getAvailableCapacity();
+    void addItem(DrugTypes item);
+    void addMultipleItems(DrugTypes item, int n);
+    int getAmountInBag(DrugTypes item);
+    void subtractItem(DrugTypes item);
+    void subtractMultipleItems(DrugTypes item, int n);
+};
+
+
+#endif //DRUGWARS_BAG_H