The card contains UVB color test strips, which can detect the UVB strength of environmental transformation.
Reusable,suitable for detecting outdoor uvb content or uvb testing on uvb lamps (standard color change effect below uvb5.0)
Card only, other accessories demo in the picture is not included!
Size: app.8.5 x 5.4 cm/3.35 x 2.13 in
Quantity: 2 Pcs/set