OKKO B-2 Pool Cue Butt Only (Shaft is not included). Imitation Leather wrap for a comfortable and secure grip. High-quality joint for a tight and precise connection between shaft and butt and a solid feel. Rubber bumper for extra protection. Quality and consistency at an affordable price. Product Specifications:. Pin Size: 5/16"-18. Joint diameter: 22 mm. Cue type: Pool. Butt material: High-quality hardwood. Butt length: 29" (735 mm). Butt weight: ~14.5 oz (~410 gr). Butt lower collar diameter: 32 mm. Wrap: Imitation Leather. Bumper material: Rubber. Country of manufacture: China