These 39 mm diameter casino sized chips are 11.5 grams in weight. They are produced from a composite resin and an insert that gives them the weight and feel of a heavy casino quality chip. The detail on these chips is flawless and their unique design makes them great for casinos and homestyle play alike. These chip cases will offer the most protection for your investment. They are made of heavy duty, yet lightweight aluminum available in brilliant silver. The interior is black felt with space for 1000 chips. Don"t be fooled by lower quality items. We have taken great care to ensure this case has the upgraded strength where required. This is the chip case that will last a lifetime