Original: A postal vote enables you to receive and return your ballot paper via the post rather than going to the polling station.
Simplified: A postal vote allows you to receive and return your ballot paper through the post instead of going to the polling station.
Simplified: A postal vote lets you receive and return your voting paper via the post rather than going to the polling station.
Simplified: Voting by post allows you to get and return your voting slip using the post rather than going to the voting station.