Magnaturals 37095 Rock Ledge, Medium, Mojave https://www.amazon.com/dp/B003714GI6/ref=cm_sw_r_cp_api_glc_fabc_DzpaGbP0HCXVV?_encoding=UTF8&psc=1
I have this ledge for my rosy boa and he loves it
https://www.amazon.com/dp/B003714GI6/ref=cm_sw_r_cp_apa_i_xoAoFbTZ3TQBE
I'm sure there are cheaper prices online
This is what it looks like. It is super light yet strong and the magnets are really strong