Size： 5mm 6mm 7mm 7.5mm 8mm 9mm 10mm 11mm 12mm 13mm 14mm 15mm 16mm 17mm 18mm 19mm 20mm 22mm 25mm 28mm 30mm 32mm 35mm 38mm 40mm 42mm 45mm 48mm 50mm 55mm 60mm. Colour： Default Black(The colors include black, white, gray, yellow, coffee, brown, dark gray, beige, reddish brown, blue, etc. ).
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