Krink's Super Black alcohol ink marker set offers multi-surface versatility for graffiti artists. With four markers included, including the K-63 mop marker and valve-action artist markers K-51, K-71, and K-70, these markers effortlessly glide across various surfaces like metal, glass, plastic, and painted surfaces. The bold and durable alcohol-based ink resists show-through, ensuring long-lasting, standout art.