This vintage 15# Brunswick Red Zone bowling ball is a rare find for any collector or bowling enthusiast. With its striking red color and polished finish, this ten-pin ball is sure to stand out in any collection. The ball is made of reactive urethane and has a symmetrical core type, making it a great addition to any medium lane condition. The ball is drilled and has a mid-performance, excelling in any bowling activity. Its weight of 15 lbs adds to its durability and makes it a reliable choice for any bowler. This bowling ball is rh handed drilled and has had the fingers redrilled twice to adjust the span. Plug work has held up very well considering the age of the ball. The thumb utilizes a Turbo switchgrip and has an inner in place, which is included since I wasn't able to remove it.