The regular mouth slot is 7mm x 60mm and the wide mouth slot is 7mm x 70mm.

• 10 coin slot stainless steel lid inserts for regular mouth (2 3/8" internal diameter) jars per order. Bands and jars sold separately - check out our stainless steel bands on Amazon or use the bands that came with your jars.
• Add a coin bank lid to any size regular mouth Mason jar and you have a piggy bank!
• Keep one in the laundry room or one on your nightstand to collect loose change! Use a half pint, pint, or quart depending how often you want to take it to the bank! Keep one in your closet to collect all those extra buttons that come with your clothes!
• These coin slot lid inserts are made of 304 grade stainless steel, so they won't rust with normal use. Dishwasher safe.
• Your entire Mason Jar Lifestyle order ships for a flat $3, or spend $35 for free shipping. Check out our other products! Usually ships same or next day via USPS First Class from Denver, CO.

10 coin slot stainless steel lid inserts for regular mouth (2 3/8" internal diameter) jars per order. Bands and jars sold separately - check out our stainless steel bands on Amazon or use the bands that came with your jars.Mason Jar Lifestyle