Our crafting sets are cut from 3mm shatterproof, safety, child safe acrylic and have laser polished edges. These mirrors have the same reflection as glass mirror and can be used for embroidery, quilting and card crafting, to name a few.Each product is supplied with strong adhesive pads along with fixing instructions. PVA glue can be used on materials and walls. If in doubt please refer to our fixing instructions. The measurements given are the overall size. The viewable area may be smaller than the overall size. We have a range of coloured mirrors and solid colours, please choose from the options. If you need any help or a different size, shape or colour please email us. All mirrors have a protective cover that needs to be removed before use. THIS ACRYLIC PRODUCT IS ENVIRONMENTALLY FRIENDLY & 100% RECYCLABLE.