Classic old-school look Injection moulded opaque coloured main body with two transparent isotope windows 6ins black ball chain Unique indented cap is removable allowing the isotopes to be inserted and also allows you to perfectly align the line clip and isotope windows Moulded line friendly pivoting ball line clip Weight: 10g Designed to work with Black Label Micro Isotopes Available in Red, Orange, Green, Blue, Purple, White and Black