4-Layer 360° Rotating Bookshelf Bookcase Display Floor Standing Storage Rack. Baby Balance Bike for 1-3 Year Old Kids Toddler Trike Ride On Toy Perfect Gifts. Using the screws to fix it to the ceiling with the prepared screws holes if you plan to mount it to the hard ceiling; Using the nylon cable ties to make it fixed if you are about to put it on the grid system.