StikkiWorks Magnetic marker ring made of durable plastic is ideal for large barrel markers and can be used for pens or other round objects. Ring that fits large sized markers comes in assorted colors and is sold as 6 per pack. Ink Color: Assorted.Tip size: Large. Fits most large barrel markers including overhead projector markers. Material: Plastic. Long-lasting durable plastic. Also great for large barrel pens and other large, round objects. 6 per pack. 6 rings per pack, bundle of 6 packs, 36 rings total