Great warm color assortment! Sample a variety of warm colors with this money-saving Variety Pack. Package contains 2” x 3” sheets of Opaque Red, Transparent Red, Opaque Yellow and Transparent Yellow. Use individually or layer with other glass to create varying hues, tones and saturation. This 90 COE fusing glass is designed for use in the Fuseworks Kiln. TO USE: Remove the lid from kiln and layer glass on kiln paper inside kiln. Contains 4 pieces. Made in the USA.