Zebra SL-F1 Slide Mini Pencanextend from 3.3 in to 4.3 in by pulling on the back of the pen. The tip retracts back in to the barrel automatically as you slide the pen back to its shorter form. The mechanism does not require an additional cap, which makes the pen really convenient. This adorable mini pen writes well and is perfectly portable. Length (extended): 4.3 in (10.8 cm) Length (retracted): 3.3 in (8.5 cm) 0.7mm Metal body Zebra 4C-0.7 refill available inblackandblue