Chronos (Billiard Training Aid) This item is being sold as-is. There are no issues with its use, but due to storage, the instruction manual and the product have stuck together, resulting in some ink transfer onto the product. Although the item is new and perfectly usable, it is being offered at approximately 50% off as a discounted item. Check and correct your eye position, head position, and the exact thickness of your shot with this single tool. Easy to carry in your cue case. Convenient for beginners to intermediate players and above, or to have at your home billiard hall. Item...Supplies