diff --git a/src/topic/TopicMessageSubmitTransaction.js b/src/topic/TopicMessageSubmitTransaction.js
index d223053f3..a9fd97359 100644
--- a/src/topic/TopicMessageSubmitTransaction.js
+++ b/src/topic/TopicMessageSubmitTransaction.js
@@ -80,12 +80,16 @@ export default class TopicMessageSubmitTransaction extends Transaction {
         /**
          * @private
          * @type {number}
+         * The maximum number of chunks a topic message can be split into.
+         * Default max chunk size: 20
+         * This value can be overridden with `setMaxChunks`
          */
         this._maxChunks = 20;
 
         /**
          * @private
          * @type {number}
+         * The size of each chunk for a given topic message in bytes.
          */
         this._chunkSize = CHUNK_SIZE;
 
diff --git a/src/transaction/Transaction.js b/src/transaction/Transaction.js
index a3412b1ad..dcbb66f10 100644
--- a/src/transaction/Transaction.js
+++ b/src/transaction/Transaction.js
@@ -59,6 +59,8 @@ export const DEFAULT_RECORD_THRESHOLD = Hbar.fromTinybars(
 // 120 seconds
 const DEFAULT_TRANSACTION_VALID_DURATION = 120;
 
+// The default message chunk size in bytes when splitting a given message. 
+// This value can be overriden using `setChunkSize` when preparing to submit a messsage via `TopicMessageSubmitTransaction`.
 export const CHUNK_SIZE = 1024;
 
 /**