Retro cores and strong reactive coverstocks define the new Avalanche series from Brunswick. Using proven core technology from the Teal Rhino Pro and some of Brunswick's most well know coverstocks, the Avalanche delivers unprecedented value to the bowling customer.CoreAll Avalanche balls use the acclaimed Teal Rhino Pro light bulb core. The Teal Rhino Pro light bulb core and it's Danger Zone modification have been at the heart of two of the most successful balls of all time.CoverstockThe Avalanche BlueSilver Pearl uses N'Control PowerBoost Reactive. Designed for more length than the PowerKoil family coverstocks. NtradeControl Power Boost is designed for lighter amounts of oil and a more down the boards line to the pocket.Blems are seconds due to a cosmetic blemish, but the specifications fall out of the 2 4 2 4 oz. range. There are a couple of areas that the ball would not meet some first quality manufacturing specifications i.e. core chip or engraving error. Blems will have an X stamped by the serial number. The label on the box is stamped X Blem.NOTE Due to the limited availability of Blems, X Outs, and Seconds pin placement and top weight are not guaranteed.Product Type Bowling Balls