The card contains UVB color test strips, which can detect the UVB strength of environmental transformation. Small size and easy storage. Suitable for people with reptiles. 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 Specification: Type: UVB test card Material: PVC Color: As picture shown Size: app.8.5 x 5.4 cm/3.35 x 2.13 in Quantity: 2 Pcs/set No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes:20 Pcs x Card