["brand new and high quality.\nThe card contains UVB color test strips, which can detect the UVB strength of environmental transformation.\nSmall size and easy storage.\nSuitable for people with reptiles.\nReusable,suitable for detecting outdoor uvb content or uvb testing on Card only.\nType: UVB test card\nsize:8.4*5.3cm\nMaterial:PVC\n\nPackage Contents: \n10 * UV Test Card\n\nOnly the above package content, other products are not included.\nNote: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.\n\nInstructions for use:\nThe weak and weaker ultraviolet rays will not harm the human body and need no for protection.\nUltraviolet rays above the medium will damage the skin and glasses and must be protected.\n\nThis card is made of ultraviolet color-changing materials, which is only sensitive to ultraviolet rays, and other visible light is invalid. Place the UV sensitive area of the card in the for sun, the for stronger the UV in the sunlight, the darker the color.\nThis card is used to test the intensity of ultraviolet rays in sunlight, and it can also be used to test the protective effect of anti-ultraviolet products.\nThis card can be used repeatedly, it is a good helper for outdoor sports, travel and for sun for protection"]