Product Size :A=9mm A=9.5mm A=10mm A=10.5mm A=11mm A=11.5mm A=12mm A=12.5mm A=13mm A=13.5mm A=14mm A=15mm A=15.5mm A=16mm A=16.5mm A=17mm A=18mm A=19mm. Material ： Silicone Rubber.
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