pH Testing Pen pebeo-acrylique Their reputation for quality and

Their reputation for quality and durability makes them a top choice for professionals and art enthusiasts

This set contains 24 PITT Pastel Pencils in assorted colours

DeSerres Gift Cards are exchangeable for any product online and in any DeSerres store

All the richness of watercolor in a single set

pH Testing Pen pebeo-acrylique Their reputation for quality andThe Lineco pH Testing Pen is an easy, convenient method for testing pH levels in paper and cardboard. Simply draw a line and instantly determine the answer. The red chlorophenol indicator solution turns a definite purple colour on any paper with a pH of 6. 5 or higher. Any other colour would indicate a material most likely unsuitable for conservation purposes.