HOLBEIN Aluminium Water Colour Palette No. 40 - 13 Slants & 3 WellsBasic folding metal palette from HOLBEIN. Base includes 13 slants for squeezing out watercolour paint plus 3 larger mixing areas. Inside of lid also covered in white enamel to provide a large mixing surface. Approximate size is 25 x 11 x 1. 8cm (25 x 22cm when open). Made from light weight aluminium with black and white enamel coatings. Very simple closing mechanism. You could add an elastic band to make sure palette stays closed during transport.