Each product dimension: 30cm x 30cm. our product consists of 4 parts. mirrors are definitely not plexiglass or acrylic. the image is clear. mirror thickness is 4mm. each mirror is 1 cm grinded in. the grinding process on the mirror edges gives the mirror fullness. there is strong double-sided tape behind the mirrors. decorative mirrors always give accurate and successful results in order to make small spaces look bigger and to add aesthetics, light and richness to living spaces. return conditions your products must be returned as they are, wrapped in a paper clip, boxed and untouched. otherwise, the returned returns will not be accepted. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.