The audible snap closure is there to assure you that the lid is sealed.
Portion Cups With Lids, 240 Sets – 5.5 oz Airtight, Stackable Souffle Cups, Sala
The audible snap closure is there to assure you that the lid is sealed. Food Storage Container Airtightness Airtight. Size 5.5 oz. Other Special Features of the Product Air Tight,…