Railing Planter Supports

I bought a few over-the-railing planters, and their supports were too short for my use-case. Hence, a model with different lengths to replace the original ones. Note that depending on the producer or model of your planters, this might not work - either too loose or will not fit. In such case, let me know the dimensions for your planter and I'll prepare the one with different size. Currently the width of the indent is 1.8mm and the protrusion in between indents is 5mm. Width of the whole piece is 10mm.