Labnic Vertical Rotary Mixer offers variable speeds ranging from 5 to 60 rpm/min, allowing for full horizontal end-to-end mixing. It accommodates 0.5 ml (13 pcs), 1 ml (12 pcs), 2 ml (4 pcs), and 5 ml (4 pcs) tubes. LED displays time and speed, with a simple on/off switch for ease of use.