This G-Core shaft is designed for McDermott cues with a 3/8"-10 joint.It features a black collar with two Silver Rings and Green Index Ring. Hardcore performance. Traditional feel. The G-Core is the perfect blend of technology and classic feel. It has the benefits of carbon fiber core technology with the familiar feel of a traditional maple shaft. Shaft length: 29” (~74 cm). Shaft material: Traditional Hardrock Maple/Carbon Fiber Core Triple-Layer Carbon Fiber Core: The G-Core’s Triple-Layer Carbon Fiber Core extends through the first 7 inches of the shaft. This stabilizes the front-impact area of the shaft for increased control and predictability. This technology increases radial consistency, reduces vibration and limits the inconsistencies found in traditional maple shafts Carbon Tenon Technology: G-Core shafts feature a carbon fiber ferrule core. This technology results in a stronger ferrule assembly with maximum impact properties and enhanced feedback. The red ring at the base of the ferrule acts as a dampener to help absorb shock upon impact Radial Consistency: Radial consistency is the shaft’s ability to perform the same way on every shot, regardless of its orientation. The G-Core's Triple-Layer Carbon Fiber Core technology will consistently provide a straighter cue ball path, minimizing the need to compensate for spin and throw Navigator Black Tip: Navigator Black tips feature multiple layers of Japanese pigskin leather that are assembled using a proprietary adhesive. This prevents oxidation, meaning the tip won’t get harder after short usage. They are most adaptable tips in the Navigator line, allowing players to shape and mold the tip over time to fit their play style. Cue tip hardness: Medium. Cue tip diameter: 13 mm. This listing is for the shaft only, cue butt is NOT included This shaft is designed for McDermott cues with a 3/8"-10 joint. It features a black collar with two Silver Rings and Green Index Ring that matches the design of the butt collar on the following McDermott cues, ensuring a consistent and seamless appearance: G216, G218, G218C, G219, G220, G221, G234, G235, G337, G338, G338C2. Important: This shaft will not fit any cue that does not have a 3/8"-10 joint.McDermott cues and performance shafts are some of the most recognized products in the billiard industry. Manufactured in Menomonee Falls, WI, McDermott cues are known for quality construction, exotic woods, intricate inlays and limitless customization options. Proudly made in the U.S.A., these cues are covered by a lifetime warranty (including warpage), as well as McDermott’s lifetime maintenance plan. Product Specifications: Model Name: G-Core Shaft Silver & Green Index Rings 3/8"-10. Shaft material: Traditional Hardrock Maple/Carbon Fiber Core. Shaft length: 29" (735 mm). Shaft profile: Pro taper. Joint diameter: 21.7 mm. Cue tip type: Navigator Black. Cue tip hardness: Medium. Cue tip diameter: 13 mm. Ferrule type: Impact-resistant ferrule. This listing is for the shaft only, cue butt is NOT included.