We use data from the JWST Public Release IMaging for Extragalactic Research (PRIMER) survey to measure the size scaling relations of 1668 rest-frame UV-bright Lyman-break galaxies (LBGs) at z=3-5 with stellar masses \mathrm{log}_{10}(M_{\star}/M_{\odot}) > 9. The sample was selected from seeing-dominated ground-based data, presenting an unbiased sampling of the morphology... Show more