The stylish accessory is essential for people living in big cities.

Running in urban environments normally involves trying to navigate an onslaught of pedestrians, which can make for a painfully slow pace. As an alternative to shouting, one husband and wife team based in Japan has created Runbell, a wearable brass bell that lets you warn people of your approach. It claims to offer “frustration free urban running,” and comes in all shapes and sizes.

Runbell is made from brass for a more musical quality, as opposed to the cheaper option of aluminum. One of the bell's key features is adjustability; which was designed to be slightly oversized, and can be adjusted to fit your finger perfectly with a selection of silicone inserts. That also means on cold days, you can leave out the inserts and wear gloves for easier use.

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