The latest innovative limb technology from Win & Win Carbon Nanotube Technology: – EX-Composite. N-Composite is added nano technology. This adjustment made at the molecular level, significantly strengthens and enhances the stability of the overall carbon matrix. EX-Foam Core. A new material used to attach the high modulus carbon in strategic points inside the limbs. Nanofoam core, provides durability smoother and enhanced overall feel. Tower Effect: – Barreled bottom design create innovative tower effect which means effective shock absorption during the shot and increased accuracy by removing unnecessary movement. Lengths: 66in, 68in, 70in Poundages: 28-48lbs in 2lbs increments Please allow 8-12 days for delivery.