Roll-up case for 27 Goldfaber Aqua Faber-Castell pencils Colored watercolor pencils. 3.3 mm core. Excellent durability against light. Soft trajectory with intense colors. High pigmentation. Waterproof and permanent. Impressive resistance to breakage thanks to an elastic bond between the core and the wood. Easy to sharpen with conventional pencil sharpeners. Fabric roll-up case with 27 Goldfaber Aqua pencils. Brand: Faber-Castell.