Waterslide Nail Decals. These decals can be applied to any type of nails (regular polish, soak off gel, hard gel and acrylic). You will receive 51 nail decals and full nail instruction in a resealable bag. Please note, the white space is transparent. Nail wraps should be applied on top of contrasting white nail polish. Your base color will be covered by decals anyway, so simply use white nail polish as a background for all of your designs! White pearl nail polish works well too. Areas that are white on pictures are transparent! If you use white base nail polish, they will look white on nails.