These are screen-printed balls made by Aramith. Therefore, the quality of the material used is extremely good and the the density will be consistent throughout the ball. The screen-printing method means that these balls are not recommended for heavy or frequent use of the sort sustained in pubs, Pool halls and clubs as the printing does tend to get worn away over time. However, they are a good option for home Pool tables where usage is light. Made in Belgium. Approx. dimensions: Diameter: 1 and 7/8 inch Product Ref.: 000WR6