From their website:?
Just a quick message posted from the middle of a system wipe and reinstall (oh joy.) to let customers know that we now have 25 mm hex bases and both low and high height flying stands available for purchase at the VBAM Store. They are available in quantities of 10 for $1.50 USD or 50 for $6.00 USD. These are the same style of bases and stands that come with our miniatures.