Trust me this is one of the best and I am downsizing to some extent and going with a lighter tripod and my Markins Q3 Emile. This is a top of the line ball head and is like new. It goes for $380 new I will sell this one with the cover for $235 plus shipping. I take paypal and will eat the fees.
The M10 is the larger of the two.
Plus I will be selling off my Nikon V1 kit that includes a complete V1 with a grip and kit lens, 10mm f2.8 with the top of the line hood, 18.5mm f1.8 with the hood and the SB-N5 flash. If interested just PM me I check daily. All Nikon One stuff has the box the M10 Markins I do not have the box but I do have the protective Neoprene cover.