Safety and Sturdy - The wide space between front and the backside of the notches allowed easier and flexible to put the rod and the wide base helps prevent damage to walls by spreading tension of shower bar evenly over a larger area and makes installation more stable Two Installation Options - Quick and easy installation, this rod holders can be installed using the adhesive backing provided or screwed into the wall. no matter which installation method you choose, they worked great in bathroom for holding shower curtain rods Installation and Useage Tips - 1. Make sure you clean the installation area and it's completely dry prior to sticking them on. 2. Wait the recommended 24 hrs for the glue to adhere before showering. A Must Have Useful Home Gadgets - Easy to install, waterproof and durable. such a practical bathroom accessories can be used not only in the bathroom, but also in the kitchen, storage room, wardrobe, living room, dining room, laundry room or other areas Colour:A:Black Material:Acrylic Package Contents: 2 * Acrylic Wall Mount Holder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.