Arryx Inc., a subsidiary of Haemonetics Corp., and Boulder Nonlinear Systems Inc. have introduced the Hotkit holographic optical trapping kit, available in three models. When combined with a suitable laser and laboratory microscope, it enables the simultaneous optical trapping of many objects in three dimensions. Based on Arryx’s high-speed hologram calculation library and software, it contains Boulder’s 30-Hz phase-only spatial light modulator, which exhibits no droop or flickering and is optimized for use with lasers emitting at either 532 or 1064 nm. A graphical interface enables imaging, trap control, calibration, and image and video recording. Users can control traps in real time or with programmable paths and can choose from multiple traps, including optical vortices, and point and line types.