The DGX Gears Glow-In-The-Dark Finger Spool is made of luminous ABS plastic loaded with {100 ft | 30 m} of #18 ~1.5mm braided nylon line also impregnated with phosphorescent pigments and includes a 3.5 inch stainless steel double-eye bolt snap. To help prevent twisting, a stainless steel line swivel is attached between the end of the GITD line and a leader loop of black line with shrink wrapped ends. Approximate dimensions of the spool are a diameter of {3.0 in | 7.5cm} and width of {1.5 In | 3.5 cm}