Vault Oslo

The Vault Oslo sits in Ping's Vault Series, a line mygolfway.com traces back to an inspiration the publication calls the Gold Putter Vault. According to mygolfway.com, the Oslo pairs a 6061 T-6 aluminium body, fully machined, with a cast 17-4 stainless steel soleplate, the kind of two-material construction meant to move weight to the perimeter while keeping the face section light. That same reporting puts the head at 365 g, with a soleplate weight of 215 g, and describes the shape as a slightly more midsize mallet with a cavity back, larger than a blade but not a full mallet.

On the face, mygolfway.com reports Ping's True Roll technology, milled grooves cut as concentric arcs that vary in width and depth, a detail meant to promote consistent roll off the strike. The reviewed configuration, per that same source, was the 365 g head in Slate PVD, fixed shaft, with a PING Pistol 62 grip, though the line also offered a Platinum finish and an adjustable shaft running 35 to 38 inches, alongside the fixed 35 inch double-bend steel shaft. Pricing was listed at 355 euros for the fixed shaft and 390 euros for the adjustable version.

Community opinion on the Oslo is split on exactly the tradeoff you'd expect from a cavity-back mallet of this size. It's described as tolerant of slight miss-hits, but with a caveat from mygolfway.com that the average golfer may prefer more forgiveness still. Other notes in the same vein flag a firmer feel that won't suit everyone and a head some found too oversized for their taste. Nothing here resolves that tension one way or the other, it's simply the shape of what got said about it.