The resulting droplet is spherical and smooth, despite the shearing. This is evident from the scanning electron micrograph (SEM) in Figure . Moreover, by using tapping mode AFM, we mapped the topography of an EGaIn droplet of radius R = 1.7 µm attached to the AFM cantilever (Fig. ), with the dots and solid line in Figure showing the radially averaged line section of the same droplet. The resulting topography map is not a sphere because of the tip-sample convolution effect when the sidewall of the tip touches the droplet. We can however fit a circle to the line section to obtain the actual droplet geometry (assumed to be spherical, dashed line in Figure ). The fitted geometry has a contact angle θ c = 148 • on the gold-coated cantilever. By looking at the magnified portion at the droplet peak, we found that the EGaIn droplet is smooth down to the nanoscale, with root mean square roughness ∆h = 1 nm (Fig. and Supporting Figure ). This suggests that our picking up procedure does not deform the microdroplets.