uxcell Nitrile Rubber O-Rings 6mm OD 4mm ID 1mm Width, Metric Sealing Gasket for Automotive Machine Plumbing, Pack of 50 4mmx6mmx1mm sold2024 Age: 3 to under 7

Age: 3 to under 7 years old

Good for pencil or ink

Without aluminum

safely store any food that could deteriorate while the power is off

metal polishing and other polishing

uxcell Nitrile Rubber O-Rings 6mm OD 4mm ID 1mm Width, Metric Sealing Gasket for Automotive Machine Plumbing, Pack of 50 4mmx6mmx1mm sold2024 Age: 3 to under 7uxcell Nitrile Rubber O Rings 6mm OD 4mm ID 1mm Width, Metric Sealing Gasket for Automotive Machine Plumbing, Pack of 50 Product Features [Size] 6mm Outside Diameter, 4mm Inner Diameter, 1mm Cross Section Diameter [Hardness] 70A Durometer (Shore Hardness) for resistance to penetration [Nitrile Rubber] Standard Nitrile Butadiene Rubber with a wide temperature range from 4F ( 20C) to 212F (100C). The o rings has smooth surface, great oil and heat