Mass-radius diagram for all planets in the PlanetS catalogue with R_p < 3 R_⊕ and M_p < 15 M_⊕, well-constrained masses and radii (5% error on radius, 25% error on mass), hosted by early M and K stars (0.35 M_⊙ < M_s < 0.9 M_⊙). The points are coloured by T_eq. The four planets presented in this paper are highlighted. We also show the eccentric solution for TOI-260 b, and the previous solution from AD20 for TOI-134 b (overlapped by TOI-286 b). The coloured curves show the composition models of Zeng et al. (2019).