uv testing card 1,pvc or other plastic material 2,size 70* ... .6mm 3,changes to red purple 4, Good price Descriptionuv testing card is the card when you use on sun or ... need high light, and the time it change is short! Specification 1. PVC Laminated, CR80.2.Material: PVC, ABS, PS, PET ... of trademark and designs belong to trade mark companies. uv testing card