Effective radius as a function of stellar mass (left), model velocity dispersion (middle), and spectroscopic velocity dispersion (middle). The black dots show all galaxies with high-concentration brightness profiles with z < 0.2, the red dots are the lenses that satisfy 180 km s^-1 < σ_mod < 300 km s^-1, 180 km s^-1 < σ_spec < 300 km s^-1, δσ_spec/σ_spec < 0.15, and 10.8  . By using all selection criteria simultaneously, we exclude large galaxies at low stellar masses and high model velocity dispersions, and small galaxies in the velocity dispersion samples.