The AcuteBand Pre-stained Protein Ladder is a three-color protein standard with 10 pre-stained proteins covering a range of molecular weights from 6.5 to 270 kDa. It is designed for monitoring protein separation during SDS-PAGE and verifying Western transfer efficiency on membranes and for approximating the size of proteins. Range: 6.5 kDa to 270 kDa. Markers: 30 kDa (red), 52 kDa (green) and 270 kDa (red).