Sanctuary is a large afghan square that works perfectly with any of my other afghan squares, or can be used alone for a cushion facing.

You can read all about it here.

With Double knitting yarn and a 4mm hook the finished size is approx 20 inches/50 cm.
With Aran/Worsted yarn and a 5mm hook the finished size is approx 24 inches/61 cm.

Sanctuary is available to purchase in both US and UK terms.