This product is designed for every player who is involved in billiard sports from English Pool to the all new Chinese 8-Ball. The Trio Tip Shaper range currently come in 3 different sizes. This is to help better vary the wide variety of cue tip sizes and how people like the dome on there tip. This tool if used correctly WILL give you the same dome you like EVERY time. No matter how many times you re-shape or re-tip you tip. The reason it’s called trio is because each size has a different dome to give you the best chance of finding the perfect dome for you. All of the sand paper in these products are replaceable.