Question mark block ledge for jumping spiders and invertebrates *Built In Magnet*

This ad is for a magnetic, 3D printed ledge for jumping spiders! This custom 3-D printed ledge has a magnet built in. This will prevent magnets from coming out overtime as well as prevent oxidation of the magnets due to moisture. This ledge measures

Large: 1.18x1.18”
Small: 0.71x0.71”