This is example of Easycheckbox with Quantities. You can see that you must select 12 chocolates to fill chocolate box. You cannot choose less or more then twelwe chocolates!

For other features of Easycheckbox with quantities, please check also this example!

Plug-in settings:

Custom Field title: "Select 12 Chocolates"
Show Title: "Yes"
Published: "Yes"
Cart Attribute: "Yes"

Custom Checkbox Title: "Selected chocolates:"
Checkbox Selection Separeted by Comma: "Black Pepper Ganache#IMG{images/choco/Choco1.jpg}#HINT{A dark chocolate ganache infused with a hint of earthy black pepper, surrounded by dark chocolate and elegantly decorated.},Chipotle Ganache#IMG{images/choco/Choco2.jpg}#HINT{The smokey-hot sweetness of Chipotle pepper melded with a rich dark chocolate ganache.},Coffee Bean Ganache#IMG{images/choco/Choco3.jpg}#HINT{These hand-picked, fresh roasted coffee beans pack a wallop. Combine their flavor with our dark creamy ganache and you have a purely decadent delight. Even a sip of the best Italian Espresso can't compare.}..............."
Increase Sales price: Checked
Show prices in cart page: Checked
Max total quantity to select: "12"
Min total quantity to select: "12"

Also, additional CSS is used for this example:

.easycheckbox-image {
height: 40px !important;
margin-left: -25px !important;
}

This example doesn't use all the functions of Easycheckbox with Quantities, but you can use them all together. There are no limitations.