Ceramic Christmas tree plastic light up twist/bulbs medium assorted colors replacement tree bulbs for a ceramic tree Ceramic Christmas Tree Decorations are Non-Electric All Plastic and Look GREAT Even When Used In Non-Illuminated Craft Projects, etc. Ceramic Christmas Tree Bulbs Seem To "Light Up" When Used In Dcor Thats Illuminated from Within TWIST Style Ceramic Christmas Tree ORNAMENTS are Carefully Molded With Crisp Detail Dimensions: STEM is 3/16 Inch Diameter x 7/16 Inch Long - TWIST is 5/8 Inch High x 3/8 Inch Diameter Pack includes 100 pieces