Spina is a concept borne out of the idea to create a dart focusing on perfect balance, along with a powerful grip. Using rigorous machining techniques, we have created a dart for players who demand optimum feel and consistency. The reverse-hook cut on the front and rear of the barrel ensure an astounding level of grip, whilst the finer shark-cut grip at the taper guarantees consistent finger placement throw after throw.Colour: BlackColour: BlueMade in: United KingdomDesigned in: United KingdomMaterial: Tungsten AlloyType: SteeltipWeight: 21 gWeight (g): 21.0Package Quantity (pcs): DartsPackage Quantity (pcs): ShaftsPackage Quantity (pcs): FlightsMaterial Specification: Tungsten 90%Original Colour by Producer: Black/Blue