Comidox 15mm Cube Defective Cross Dichroic Prism RGB Combiner Splitter Glass Decoration 2PC

Size:15x15x15mm, Due to all of this prism are defective,Can't use on Projector., Can be use as a Decoration or to Ressarch., Put it under the sun, you can see its brilliant and colorful, given to children as a gift, to cultivate children's interest in science.