What's inside our Smelly Balls Set? - Wool air freshener balls - Fragrance Oil 5ml (0.17 fl oz) - postcard - Instructions on how to use our Smelly Balls Our rugged balls are for those who enjoy living life on the wild side and taking on any adventure. Whether it's a rough road trip across rugged terrain, scaling mountains, or navigating sea cliffs, they evoke associations with the earth's layers and sedimentary formations and that there is a larger world beyond our day-to-day lives, inspiring you for your next adventure. Paired with Coastal Drift - A fresh and invigorating fragrance for those that love the beach. The sand, the sun, the surf. You live for refreshing dips in the ocean. You can’t get enough of that ocean breeze as you soak up those warm rays cruising past the coastlines.