The plastic lid has no hole and can be used for paper bowls and cups with 115mm diameter  to avoid spillage.  The lids with different sizes are made from professional plastic thermoforming machines.  The temperature resistance is from 0 to 60 degree Celsius and out of direct sun light.  The plastic lid is made of food grade PET material, 100% safe to health. This lid fits 28-32oz paper bowls.