Marbles and gems can be required for many different things such as art projects or crafting around the house. Locating an online store that sells high quality ones or at economical prices can take some time but you do not need to look anymore. McGills warehouse manufactures their products so that every customer is satisfied to the point they return for another purchase. These handmade 16mm transparent marbles have unique orange and yellow colored swirls that make them look very pretty especially in the sunlight. Buying these sets in bulk will also make you eligible for free delivery which you can also get if you live in United States.