These markers can be used on almost any surface wood, paper, plastic and metals. Have your children make their grandparents and relitives gifts for Christmas! Decorate Mugs, Picture Frames, Glasses, Ornaments, etc... When that are used on fabric you just heat set them before laundering. Markers are Waterbased. Choose from Single Markers or sets. Primary Set: Red, Blue, Green, Black and White. Craft Set: Purple, Pink, Yellow, Orange and Brown. Available in Fine or Meduim Point. Sets Retail Price $12.99 & Single Markers Retail Price $2.75