So this Qryovsa marble set is actually pretty perfect if you need replacement marbles for board games or just want a nice collection for various games and activities. You get 30 marbles total - 5 of each in 6 different colors, all measuring 18mm in diameter. They come with a storage bag to keep everything organized, plus 6 dice are included too, which is a nice bonus. The marbles are solid and well-made, not cheap or brittle feeling at all, and the colors are vibrant without being likely to fade over time. They work great as replacements for Aggravation, Wahoo, Dirty Marbles board games, but you can also use them for marble runs, checkers, bead games, or even just as decorative pieces. The whole package measures about 5.2x3.07x1.77 inches, so it doesn't take up much space in your game cabinet. Just a heads up - since these are small parts, you'll want to keep them away from really young children due to choking hazards, and kids under 12 should be supervised. But for older kids and adults, they're fantastic. The marbles roll smoothly and have that satisfying weight and feel you want from quality game pieces. The storage bag is actually decent quality too - not just a flimsy plastic bag. Whether you're replacing lost game pieces, starting a marble collection, or need supplies for various games, this set has you covered with plenty of marbles to go around. The packaging is secure for shipping, and they make a really thoughtful gift for game enthusiasts or anyone who appreciates classic toys with modern quality.