Made of solid silicone, these dice offer a lively bounce to their rolls; fairly hefty, yet unlikely to damage furniture, we still recommend a tray to keep them contained. 16mm standard 7-set dice in another listing. Wholesale cost of $15ea, msrp $30, (17/35 for the multicolors) we have found them to be very popular at local conventions. All of the silver font dice are Glow in the Dark! Pastel Mix is available with white ink or uninked. ALL of our 55mm silicone dice are available with custom ink colors for no extra charge! If you have an idea you don't see, send us a message!