We consider 3d $\mathcal{N}=4$ theories on the geometry $\Sigma \times \mathbb{R}$. where $\Sigma$ is a closed and connected Riemann surface. from the point of view of a quantum mechanics on $\mathbb{R}$. Focussing on the elementary mirror pair in the presence of real deformation parameters. https://unitedssports.shop/product-category/bike-parts-shifters/