CleverDelights Black Hollow Rubber Tubing - 30 Feet - 3mm Diameter Tube Cord - 3/32" OD x 1/32" ID Color: Black Outer diameter: 3mm (approximately 3/32") -- Inner diameter: 1mm (approximately 1/32") Premium quality rubber cord can be used for a variety of jewelry design and embellishment Flexible and resilient Top-quality CleverDelights brand - Ships from a USA warehouse - Get your items quick!