Boulders - approx. 25mm or 1"

Boulder marbles usually range between 23 - 25mm in diameter.
This is the size that we use to play marble bowling and many people use this size marble as their shooter. They are close to the same size as a quarter in diameter. All sizes are approximations and can vary from one marble to the next. Due to the way that they are made, machine made marbles have creases in their surface, which may be noticeable in this size. Please go to our Marble Info page to learn about marble sizing and the variations associated with machine made marbles.
Pricing shown is for a pack of 12 marbles. For discounted pricing on larger quantities of marbles, click on the image.