corner and edges of round/heart containers is smooth and good sealing, easy to open and close. for protecting your minerals, statues, dolls, figurines. it is also can be used as a jewelry box, candy box or display box and so on size and clear acrylic box with lid large volumes, do not take up too much space, easy to carry and decorate for home. clear design, seeing the product in the box do not need to open the lid Easy to use each container with a lids to keep items separate and organized. you can see the inner box from outside of fully transparent storage box Durables and strong clear boxes make from none brittle ,which is durables and strong. clear boxes is easy to care and clean with soap and water Multipurpose,minis boxes are for wedding function, treats, gifts and so on. What is more , It is a good choose using this box to storage collectibles, jewelry, candy, arts, ,makeup ,nails supplies , horizontally for cars ,vertically for dolls or action figures and so on