This bola set was sold in an eBay auction in 2006 for $100. The seller purchased it at an old New England Estate Sale. The seller says that the balls appear to be made out of a ceramic material with silver end caps. The balls are different sizes, but they average about 2 1/4" in diameter. The three leather ropes are approximately 42" - 44" long and are woven together. The entire piece is in very good undamaged condition.