Fox Black Label Slik Bobbin Isotopes

Designed to fit onto the Bite Indicators in the exceptional Black Label range from Fox, these White Isotopes are the perfect solution for those long overnight sessions. Available in two sizes, these Black Label Isotopes will fit both the micro bobbin head and the standard bobbin head. In a brilliant white, these Black Label Isotopes will make it incredibly easy to spot your bobbin in low light levels.