Markers provide permanent marking on plastic disposables. When used on glass or metal reusables, or on porcelain surfaces, ink will not smear when subjected to water and can be washed off these surfaces using various solvents, allowing repeated marking.. Provide permanent marking on plastic disposables. Dries quickly for immediate handling of labware. Durable tip and generous ink supply provide a long product life. . . VWR 52877-310 Lab Marker, Black, Pack of 10. Country of Origin : United States. Part Number : 1176K74PK. Pack of : 10.