Shane/Kast blue and red optical spectra of TOI-5720 (top), TOI-6008 (middle), and TOI-6086 (bottom). The target spectra (black lines) are normalized at 7400 Å and compared to their best-fit SDSS standard template (magenta lines) from Bochanski et al. (2007). The gaps in the target spectra between 5600 and 5900 Å correspond to the dichroic split between the Kast blue and red channels. Key spectral features in the 4200–8900 Å region are labeled. The inset box highlights the region around the 6563 Å Hα and 6708 Å Li I lines, neither of which are detected in any of the sources.