O-Ring Sizing Cone Measuring Tool 3mm-60mm/61mm-100mm and 3mm-30mm Free (Orange)
These are compatible with O-rings ranging from 3mm to 100mm in size and are made of non-toxic heavy-duty PLA material, ensuring durability and longevity. 3mm-60mm Cone Gauge. 61mm-100mm Cone Gauge. 3mm-30mm Cone Gauge.