Provide your cat more chances to play, lounge, and scratch while enjoying your home decor with PetFusion Wall Activity Shelves. These shelves are ideal for cats who love to climb and perch up high, offering stimulation for both young kittens and older cats. They are easily wall-mounted and securely attached to ensure a safe environment for children and cats. The package includes zinc drywall anchors installed with a hammer and screwdriver and removed quickly with a screwdriver. Drilling is not required unless you anchor into studs or have plaster walls?the estimated total assembly time is 20 minutes. The premium E0 grade MDF complies with formaldehyde safety regulations.