1.CLEAR MATERIAL: The clear piggy bank is made from highly transparent acrylic material. Our acrylic adult piggy bank is sturdy and transparent compared to the fragile glass, opaque ceramic, and hard-to-open stainless steel piggy bank. and easy to break up when the goal is completed. The highly transparent look allows you to see the balance of the deposit inside the unopenable piggy bank clearly. Fully enjoy the happiness of money growing. 2.LARGE CAPACITY: SIZE: 5.1 5.1 5.1 inches. Capacity: 2 Quart = 1/2 Gallon = 8 Cups = 64 Fluid Ounces. The slot is sized for all US coins cash and bills. The piggy bank box can store about 1200 coins and 500 banknotes. 3.UNOPENABLE DESIGN: If you feel like you have poor control but are planning to discipline yourself to save money or prepare a savings plan, then our plastic piggy bank for adults is a great solution. Because our clear unbreakable piggy bank can only hold money and cannot withdraw until the goal is completed. 4.PERFECT DISPLAY: Wide low profile adult savings jar is perfect for the countertop, desk, or dresser. any table and blend in with any decor.