QuicPick Devices employ a retractable magnet, stronger than in any other hand-held device, to rapidly transfer particles. Designed for best use with high-iron beads in the QuickPick Kits, QuicPick devices may also be used with other magnetic particles and reagents. Tip covers for the extended magnet are made of a special tough, inert polymer that does not adsorb or retain biological molecules or magnetic particles. Tip covers can be autoclaved, as well as treated with suitable chemistry to remove any RNase/DNase residues.