Surprisingly, Google’s cheapest innovation – a virtual reality cardboard headset – has become a huge hit. It is literally a piece of cardboard that people can use to hold their smartphones to their face for a low-priced but outstanding virtual reality.

While this is not something new as Google has already released its first cardboard headgear at last year’s Google Annual Developer Conference, this improved Google Cardboard headset requires lesser time and simpler steps to assemble (and disassemble) than the old version. It takes three easy steps only as opposed to the 12 it took to create the original model.

What’s even better is that it can support larger phones with screens up to 6 inches, now that smartphones are way bigger than they used to be.

More importantly, the tech giant said that consumers can buy it for as little as five Australian dollars. You do not need to buy a computer rig worth over thousands of dollars to have a one-of-a-kind virtual reality experience.

Unlike with the giant’s virtual reality rivals that remain to develop expensive systems, Google is trying its best to produce less costly products that anyone can afford and build – opening up VR to a bigger number of consumers.

So, how does Google Cardboard look like? It appears like an innocuous-looking box that merely hints at the possibility and an additional cardboard within. You just have to slide it out to unveil the headgear. Then slide your phone into the front of the cardboard viewer and secure it in place with a velcro. Your smartphones will serve as your display screens for immersive videos.

If you want to build your own viewer, Google teaches you a step-by-step instruction which you can download at Google’s Build it Yourself VR Headgear Manual. A few everyday items like magnets, rubber band and velcro, as well as ordinary lenses you can buy from the nearest hardware store are the things you have to use for your DIY Google Headgear.

Vice president of product management, Clay Bavor said, “People keep finding new and creative uses of cardboard in VR. One guy even proposed to his girlfriend with the help of Cardboard.”

The kit works for both Android and iOS and allows you to access a few different wonderful VR experiences such as an “urban hike” through Paris around the Eiffel Tower through Google Street View. Additionally, the newly released system “Expeditions” will give teachers and students the opportunity to tour different locations virtually via the Cardboard and a classroom’s existing smartphones and tablets.