https://www.cyclingeu.com/336591/what-is-this-black-thing-on-my-multitool/ What is this black thing on my multitool ? #Bicycling #Bike #BikeRepair #Biking #Cycling #Repair https://media.pubeurope.com/media_attachments/files/112/866/196/402/815/499/original/94853c977594096c.jpeg