Mass bias for masses inferred from fitted κ-maps with respect to M₅₀₀ per cluster. Each data point corresponds to the mean bias of a cluster for a given random projection (0, 1 or 2) with error bars showing the 1σ uncertainty. Results for the Einasto model have been artificially shifted in mass for visualisation purposes. The horizontal orange and purple dashed lines show the mean for all the results for NFW and Einasto, respectively. The black line indicates the zero.