Unique Handmade Stainless Steel Chain Necklace in a Hefty Birdcage weave. This is our Large size Birdcage weave. "Hefty" is very fitting! This necklace weighs over a 1/4 of a pound! It has 4 sides to it like a box but, with an alternating fold back configuration. This creates a square-knot pattern. Also sometimes referred to as a Byzantine weave. The built chain is 9 mm thick, finished with a Lobster Clasp.