# Quantity The quantity block makes it possible to set a specific amount and change the price dynamically based on the quantity your customer selects at checkout. ## How to Add Quantity to a Checkout The **_Quantity Input_** block is added from Block Options. 1. Hover within a section and click **_Add block_** 2. Select **_Options_** from the block type menu 3. Select **_Quantity_** from the options type menu 4. Configure your **_Quantity Settings_**. ## Quantity Settings After you add the Quantity Input block to your checkout, a settings panel will display on the left of the screen. You can open this settings panel anytime by clicking on the Quantity block on the checkout canvas. In the **_Quantity Settings_**, you can adjust pricing & display settings. If you want to store the quantity selected as a value in a custom field, you can also map the quantity input to a Spiffy Custom Field, or an Integration Field. You will see the field mapping settings at the top of the sidebar when editing _Quantity Settings_. This Quantity Input Block is a simple and linear quantity block, where you set a unit price, and the price changes by that unit price amount for every additional quantity purchased. If you want to offer a discounted price for different quantities, you will need to setup normal **_Options_** with **_Price Modifiers_**, to have more control over the price for each quantity option. You would create a Dropdown Options block and set up _price modifiers_ for each option to mimic the **_Quantity Select Dropdown_** layout below. [**Learn more about Options and Price Modifiers**](https://university.spiffy.co/elements/options.md). ## Layout Settings At the bottom of the Quantity Input Settings, you will see **_Layout Settings_**. You can select either _Quantity Input_, or _Quantity Dropdown_ ### Quantity Input Users can click in the field and type in any number, or click the +/- buttons to add or subtract quantity within the minimum and maximum numbers you set in the quantity input block settings. ### Quantity Select Dropdown Your customers can click on the dropdown field and select a specific number from the list of available quantities.