diff --git a/src/main/java/com/springboot/ratelimiter/common/model/dto/request/CustomPagingRequest.java b/src/main/java/com/springboot/ratelimiter/common/model/dto/request/CustomPagingRequest.java
index 7735697..146ea66 100644
--- a/src/main/java/com/springboot/ratelimiter/common/model/dto/request/CustomPagingRequest.java
+++ b/src/main/java/com/springboot/ratelimiter/common/model/dto/request/CustomPagingRequest.java
@@ -8,6 +8,9 @@
 import org.springframework.data.domain.PageRequest;
 import org.springframework.data.domain.Pageable;
 
+/**
+ * Class named {@link CustomPagingRequest} representing a custom paging request.
+ */
 @Getter
 @Setter
 @SuperBuilder
@@ -16,6 +19,11 @@ public class CustomPagingRequest {
 
     private CustomPaging pagination;
 
+    /**
+     * Converts the custom paging request to a Pageable object.
+     *
+     * @return the Pageable object
+     */
     public Pageable toPageable() {
         return PageRequest.of(
                 Math.toIntExact(pagination.getPageNumber()),
diff --git a/src/main/java/com/springboot/ratelimiter/common/model/dto/response/CustomPagingResponse.java b/src/main/java/com/springboot/ratelimiter/common/model/dto/response/CustomPagingResponse.java
index f9c542d..c0dc1d7 100644
--- a/src/main/java/com/springboot/ratelimiter/common/model/dto/response/CustomPagingResponse.java
+++ b/src/main/java/com/springboot/ratelimiter/common/model/dto/response/CustomPagingResponse.java
@@ -6,6 +6,11 @@
 
 import java.util.List;
 
+/**
+ * Class named {@link CustomPagingResponse} representing a custom paging response.
+ *
+ * @param <T> the type of content in the response
+ */
 @Getter
 @Builder
 public class CustomPagingResponse<T> {
@@ -20,8 +25,20 @@ public class CustomPagingResponse<T> {
 
     private Integer totalPageCount;
 
+    /**
+     * Builder class for CustomPagingResponse.
+     *
+     * @param <T> the type of content in the response
+     */
     public static class CustomPagingResponseBuilder<T> {
 
+        /**
+         * Sets the fields of the CustomPagingResponseBuilder based on the provided CustomPage.
+         *
+         * @param customPage the CustomPage object
+         * @param <C> the type of content in the CustomPage
+         * @return the CustomPagingResponseBuilder
+         */
         public <C> CustomPagingResponseBuilder<T> of(final CustomPage<C> customPage) {
             return CustomPagingResponse.<T>builder()
                     .pageNumber(customPage.getPageNumber())
diff --git a/src/main/java/com/springboot/ratelimiter/common/model/dto/response/CustomResponse.java b/src/main/java/com/springboot/ratelimiter/common/model/dto/response/CustomResponse.java
index f9f6d5a..fb17855 100644
--- a/src/main/java/com/springboot/ratelimiter/common/model/dto/response/CustomResponse.java
+++ b/src/main/java/com/springboot/ratelimiter/common/model/dto/response/CustomResponse.java
@@ -8,6 +8,11 @@
 
 import java.time.LocalDateTime;
 
+/**
+ * Class named {@link CustomResponse} representing a custom response.
+ *
+ * @param <T> the type of the response content
+ */
 @Getter
 @Builder
 public class CustomResponse<T> {
@@ -27,7 +32,13 @@ public class CustomResponse<T> {
             .isSuccess(true)
             .build();
 
-
+    /**
+     * Creates a success response with the given content.
+     *
+     * @param response the response content
+     * @param <E> the type of the response content
+     * @return the CustomResponse object
+     */
     public static <E> CustomResponse<E> ok(E response) {
         return CustomResponse.<E>builder()
                 .response(response)
@@ -36,6 +47,13 @@ public static <E> CustomResponse<E> ok(E response) {
                 .build();
     }
 
+    /**
+     * Creates a created response with the given content.
+     *
+     * @param response the response content
+     * @param <E> the type of the response content
+     * @return the CustomResponse object
+     */
     @ResponseStatus(HttpStatus.CREATED)
     public static <E> CustomResponse<E> created(E response) {
         return CustomResponse.<E>builder()
diff --git a/src/main/java/com/springboot/ratelimiter/common/model/page/CustomPaging.java b/src/main/java/com/springboot/ratelimiter/common/model/page/CustomPaging.java
index f0e79c5..afe7e0f 100644
--- a/src/main/java/com/springboot/ratelimiter/common/model/page/CustomPaging.java
+++ b/src/main/java/com/springboot/ratelimiter/common/model/page/CustomPaging.java
@@ -7,6 +7,9 @@
 import lombok.Setter;
 import lombok.experimental.SuperBuilder;
 
+/**
+ * Class named {@link CustomPaging} representing custom paging information.
+ */
 @Getter
 @Setter
 @NoArgsConstructor
@@ -20,6 +23,11 @@ public class CustomPaging {
     @Min(value = 1, message = "Page size must be bigger than 0")
     private Integer pageSize;
 
+    /**
+     * Gets the zero-based page number.
+     *
+     * @return the zero-based page number
+     */
     public Integer getPageNumber() {
         return pageNumber - 1;
     }