Amazon's Push-to-Buy 'Dash' Buttons Go on Sale

— -- Amazon is bringing its one-click ordering system to everyday life with its Amazon Dash button.

The push-to-order buttons are now available to Amazon Prime members for $4.99, with 18 different buttons -- each covering a household product. (You may recall they were announced on April 1, leading many to wonder if it was Amazon's idea of an April Fool's joke.)

The buttons are branded with some of the most common household products made by participating brands, letting users easily re-order everything from Huggies diapers to Tide detergent.

Each Dash button comes with adhesive so it can be stuck in a convenient place for when it's time to reorder. The buttons only respond to a single press, meaning that you won't have to worry about any trigger-happy kids accidentally ordering 50 rolls of paper towels.

The battery-powered buttons work by connecting to a home Wi-Fi network. Users then use their Amazon app to set up their buttons and what they want to order (for instance, what size of diapers). From there, all they have to do is press the branded button for the product they want to re-order.

After a Dash alert has been sent, Amazon will send a notice to the buyer's phone, making it easy to cancel if they want to change their order.

If the customer presses the button when they are running low, the goods will then be delivered to them just in time so they never run out of a particular household product.