2014 Maxfli Revolution Spin (15 Pack) Improved cover and core constructions deliver increased spin Tungsten-infused core increases Coefficient of Restitution (C.O.R.) for faster ball speeds New construction provides an average of 35% more spin on half wedge shots for shot-stopping control Soft Ionomer cover generates higher greenside spin for exceptional control on scoring shots High launch, low spin dimple design delivers consistent ball flight with any club