PEPPERELL-Stretch Magic Double Pack. Stretch Magic is the world's best selling stretchy jewelry cord. It's perfect for just about any beading work because it's strong, elegant in appearance, and it stretches like elastic making your jewelry easy to wear and remove. The secret is a high-tech polymer that will not crack or harden over time. Non-fraying ends makes beading so easy. This value pack contains one 25m spool of 1mm wide Stretch Magic Cord and one 5m spool of 0.8mm wide Stretch Magic Cord. Imported.