30mm x 4mm Slide Tube Designed for use with Seed Beads and Delicas 11/0 - 8/0. Inner tube measures 2mm in diameter. Slide your last row of beadwork into the open end of the tube and close the flap with your pliers. * Core metal: Brass. * Sold by the Piece. * Available in 8 Finishes * Lead safe & Nickel Free * Protective e-coating layer Care Tips: Do not swim or bathe with this jewelry chain. Try not to spray perfume or rub lotions on this product as it could mar the finish. To clean, use gentle hand soap and warm water. Pat dry with a paper towel. Do not use jewelry cleaners or a jewelers cloth. Super fast shipping for USA customers. Hurry while supplies last!