Sample pots of Protek Royal Exterior Wood Paint are packaged in plastic tubs with a screw lid and contain 125ml of your chosen colour. These pots are ideal for testing out how the treatment will look painted on your chosen surface, and can give you an idea of how well your chosen shade will suit your garden. Colour can vary based on many factors, such as the type of surface treatment is painted onto or how many coats are used, so many customers opt for the peace of mind that comes with trying out a colour before purchasing a larger quantity.