82 Feet Powercord Stretch Elastic Cord .8mm for Jewelry Making Powercord is a latex free elastic great for jewelry making with a test strength of 8.5lbs.. The width is 0.8mm that is compatible with most beads. This is an 82 foot spool (25 meters). The elastic is clear. Finish with a knot and glue. A crimp cover can be added for a more polished look.