... yellow,etcSpecifications:(ThicknessxWidth) BWG28X3/8", 1/2", 5/8"(0.36mmx9.5mm, 12.7mm, 16.0mm)BWG27X3/8", 1/2", 5/8"(0.40mmx9.5mm, ... 12.7mm, 16.0mm)BWG26X1/2", 5/8", 3/4"(0. ... .50mmx12.7mm, 16.0mm, 19.0mm)BWG24x1/2", 5/8", 3/4"(0.55mmx12.7mm. 16.0mm, 19.0mm) ... 90mmx19.0mm, 25.4mm, 32.0mm)BWG19x3/4", 1". 5/4"(1.00mmx19.0mm, 25.4mm, 32.0mm)Coils Inner Diameter ...