Box of 26 Staedtler triplus brilliant colour with fibre-tip in ergonomic triangular shape for relaxed and easy writing and colouring. Stable, pressure-resistant tip. DRY SAFE -can be left uncapped for days without drying up. Ventilated cap conforming to ISO 11540. Water - based ink. Washes easily out of most textiles. Line width approx 1 mm.