MATERIAL & QUALITY: Glass jars made of high-borosilicate glass which features with great stability, higher hardness, heat resistance with better light transmission.And lids are made of high-quality nature bamboo.Each jar cover comes with a food-grade silicone sealant ring ,more effective in preventing fluid flow and the entry of gases and bugs,better food preservation.All materials are BPA free,BPA free,safety ,non-toxic. PRACTICAL & DURABLE: The glass jars are perfect for storing various ingredients, snacks or other food products, such as sugar, beans, cookies, tea, candy and spices, pasta, herbs, spices & seasonings,flour and sugar containers,etc. CONVENIENT DESIGN: Those canister sets for kitchen counter are expertly designed with transparent glass for easy to see what is inside,and wide mouth for easy to access and clean.