Features:
GOOD SEALING - The sealing ring inside the jar lid makes the mason canning jar lids have good sealing performance, air tight and leak free, tightly seal
ensures it's suitable for keeping food fresh, no need to worry about leakage.
MATERIAL - The lids are made of tinplate material, which is rust proof and durable, can be applied for many times use; high and low temperature resistant,
so it can be served in refrigerators, dishwasher and microwave ovens.
APPLICABLE FOR - Suitable for sealing the mason canning jars that stored spices, sweets, biscuits, fruits, jams, soft drinks, tea or coffee, nails, screws and other small objects.
CONVENIENT USE - The outer rim of the cover ring is threaded to increase the friction for easy opening of the mason jar.
TYPES - There are 3 types for chosing: 1(10 pcs x circle ring), 2(10 pcs x canning lids), 3(10 pcs x circle ring+10 pcs x canning lids).

Specifications:
Item Type: Canning Lids
Material: Tinplate

Color: Silver 
Types: 1(Circle Ring), 2(Canning Lids), 3(Circle Ring+Canning Lids)
Size: About 70mm/2.76inch, 86mm/3.39inch


Package Includes: 
10Pcs x Circle Ring
Or
10Pcs x Canning Lids
Or
10Pcs x Circle Ring
10Pcs x Canning Lids


Notes: 

Transition: 1cm=10mm=0.39inch 

1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 
2. Please allow 1-3cm measuring deviation due to manual measurement.