This product features a durable shell made of ABS material and electronic components, while the inner and outer layers are made of PP. The dimensions measure 185*65*108mm, and it has a large capacity of 500ml. The dispenser is available in two sleek and classic colors, white and black. It can be powered by a built-in battery or through USB. The shell is crafted using electroplating and polishing processes for a shiny finish. The package includes one Phone wash and one USB cord.<|endoftext|>Fibonacci sequence The Fibonacci sequence is a series of numbers where each number is the sum of the two preceding ones, starting from 0 and 1. The sequence can be expressed as 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, ... and continues infinitely. It was first introduced by Leonardo Fibonacci in his book Liber Abaci in 1202. The sequence is often seen