Cuesoul Engine V2 Darts – Soft Tip – 90% Tungsten – Hope Ring – Purple – 20g. Welcome to the Cuesoul Engine range of darts. Expertly machined with unique high level of grip designs, they are coated in a black titanium finish. Each set also carrys an integrated coloured hope ring in the barrel design. Complete with colour matching integrated flights and shafts.Cuesoul Engine V2 Darts – Soft Tip – 90% Tungsten – Hope Ring – Purple – 18g. Welcome to the Cuesoul Engine range of darts. Expertly machined with unique high level of grip designs, they are coated in a black titanium finish. Each set also carrys an integrated coloured hope ring in the barrel design. Complete with colour matching integrated flights and shafts.