These are self-adhesive "Just Baked Fresh" bakery sealing stickers. 

The stickers are designed for sealing pastry bags, cake boxes, and other food packaging. 

They are round and feature text that says "Handmade Just Baked Fresh Special Selected Baking Just Now". 

The pack likely contains multiple sheets, with sets often sold in quantities of 64 or 160 total stickers. 

They are made from paper and have a self-adhesive backing.