diff --git a/README.rst b/README.rst
index 181a926..bb867fe 100644
--- a/README.rst
+++ b/README.rst
@@ -68,7 +68,7 @@ BaseMailBox.fetch - first searches email uids by criteria in current folder, the
 * *mark_seen* = True, mark emails as seen on fetch
 * *reverse* = False, in order from the larger date to the smaller
 * *headers_only* = False, get only email headers (without text, html, attachments)
-* *bulk* = False, False - fetch each message separately per N commands - low memory consumption, slow; True - fetch all messages per 1 command - high memory consumption, fast; int - fetch all messages by bulks of the specified size (20 msg, bulk=5 -> 4 commands)
+* *bulk* = False, False - fetch each message separately per N commands - low memory consumption, slow; True - fetch all messages per 1 command - high memory consumption, fast; int - fetch all messages by bulks of the specified size, for 20 messages and bulk=5 -> 4 commands
 * *sort* = None, criteria for sort messages on server, use SortCriteria constants. Charset arg is important for sort
 
 BaseMailBox.uids - search mailbox for matching message uids in current folder, returns [str | None], None when MailMessage.from_bytes used, args: