Steel has been inserted to assist in the reduction of vibration and torsion caused when force is transferred from the bow limbs. The Mathews® EHSTM dampening system has been introduced to improve stability of the shoot feeling, accuracy of the bow and ultimately arrow grouping. Meta DX riser is made of graphene carbon which is the best carbon material of WIAWIS Length: 25 inch MaterialGraphene / Nano Carbon Mass Weight: 1340 gram Handedness: RH, LH Limb Fitting: ILF