Thermo Scientific Kingfisher 96 tip comb for DW Magnets Optimize performance using Thermo Scientific KingFisher Systems Consumables, specifically designed for use with the KingFisher System and ideal for magnetic particle processing because of their low binding affinity for biomolecules. The specially-designed, disposable tip combs and microplates, which are made of polypropylene, enable excellent recovery of magnetic beads.