Design principle: Each strip is firmly adhered to the bathtub surface with its special eco-friendly adhesive. Its bristles have hundreds of tiny cavities that create friction. Meanwhile, the sticky shower strip allows water to flow freely so suds don't slip. Advantages: These stickers can be firmly stuck to smooth surfaces and provide strong grip and excellent grip, providing long-term use. Long-lasting slip and fall prevention. The special adhesive of these shower stickers is easy to remove without leaving any residue. Plus, the shower stickers are non-toxic, colorfast, safe and convenient. Package contains 24 clear stickers (0.8" x 7.9") with high quality silicone spatula. Ideally, the 24 stickers should cover most of the surface of the tub to minimize the risk of slipping. However, you can use these stickers on your stairs for extra safety.