?Adhesive or screw 2 installation modes?: Can be installed according to the attached installation instructions. ?Adhesive installation?: Simply install Apply the supplied glue evenly to the designated position of the shelf and used with 3M self-adhesive. Leave it for 24 hours to ensure better adhesion, then place the object on top. Suitable for all kinds of smooth and flat surfaces. No need to drill holes and don't worry about damage to walls, water pipes and cables. ?Screw installation?: If you want to install on uneven walls, we also provide accessories (included in the product) for drilling. Both methods are very easy even if you have no DIY experience. ?Double roll holder?: Two rolls of toilet paper can be placed, one roll for normal use and the #39;other roller for replacement. no need to ask for help after finishing the first roll, very convenient. ?With a child-friendly shelf?: The shelf can hold a maximum weight of 10 kg, it is large enough to hold various items, such as large