美国采购需求：马克笔颜料、马克笔、马克笔套装、马克笔、丙烯马克笔、马克笔

I'm interested in your range of markers, specifically the alcohol markers, drawing markers, and dual tip art markers suitable for adult sketching and coloring. I would like to know how many different colors you currently offer in these categories. Additionally, I'm curious about the minimum order quantity for these products. Could you also provide a price quote for a bulk order? It would be helpful to know if there are any discounts or promotions available for larger quantities. I'm looking forward to your response so I can move forward with my purchasing decisions. Thank you!