Copic Sketch Markers are twin-tipped Artist Markers. It has a brush point on one and chisel cut point on the other point. The barrel is oval shaped
Copic Ciao Marker Set, 24-Colors, Basic
A complete guide to alcohol markers, by crystal
Copic Markers: A Comprehensive Guide
Copic Markers - Everything You Need to Know About Copics Before You Buy — Art is Fun
Copic Markers, Official US Site and Store
A complete guide to alcohol markers, by crystal
Types of Copic Markers - Copic Thinking
My Top 10 Copic Sketch Marker Tips… Joanna Baker : Fashion & Lifestyle Illustrations
Tools On My Desk: Best Paper for Copic Marker - 4 Instructors Share Their Recommended Favorites — Vanilla Arts Co.