The Dynabeads Protein G and Magnet Starter Pack combines Dynabeads Protein G magnetic beads for immunoprecipitation with the magnet preferred for use with 1.5 mL microcentrifuge tubes for purchasing convenience. Each mL of beads is sufficient for 20 reactions, and the magnet holds 16 x 1.5 mL microcentrifuge tubes. Dynabeads Protein G beads and the DynaMag-2 magnet are also available separately.