Tom Ritchey's latest handle design features a single-sided locking function with a spiral core that self-tightens and distributes the clamping force along the entire length of the handle. This ensures that the grip stays in place, even under the highest torsional forces that would cause the grip to twist. The blend of these unique dual-density grips ensures a comfortable and secure feel, and thanks to their innovative design and lightweight construction, these grips weigh just 133 gr. couple.length: 133 mm weight: 133 gr. material: kraton rubber colour: black universal use unique spiral core single-sided locking sleeve