The Barrel size is 1\"/25 mm; Providing uniform heat recovery system Instant 30 second heat and variable settings per your hair type Multi-layer technology barrel combines the elements of chromium nickel; copper; and steel for beautiful long-lasting results Auto shut off system with cool tip; on/off touchpad with ON indicator Dual voltage worldwide and counter reset; also tangle-free swivel cord 60 second instant heat up › See more product details