Carpet Freshener labels are printed on permanent matt A4 sheets 

46x25mm  - 5 x 40 labels per sheet 

General Product Safety Regulations 2005 (GPSR). If you make, import, distribute or sell consumer products in the UK, you are responsible for making sure they are safe for consumers to use and following the legal requirements in relation to labelling. You could face action if a product is found to be unsafe or causes harm to consumers, including legal action.