Using these Bling2O Jawsome swim goggles is easy. First, open the hard protective case and take out the goggles. Adjust the back clip to fit your head comfortably. Put the goggles on, making sure the lenses cover your eyes well. Before entering the water, you can rinse the goggles with a bit of clean water to help activate the anti - fog feature. When you're done swimming, rinse the goggles thoroughly with fresh water to remove any salt, chlorine, or dirt. Let them air - dry in a cool, shaded place. Keep them in the hard protective case when not in use to prevent scratches. Don't expose them to direct sunlight for a long time as it may damage the silicone material. Also, avoid using any harsh chemicals to clean them as it could affect the anti - fog and UV protection properties.