Easy to Install:Attention before installation,You must clean and dry the surface before installation,This is very important.Clean and dry the surface before installation, you can heat the mounting surface and adhesive with a hair dryer for better adhesion, tear off the sticker and press to the surface within minutes,press shower threshold water dam repeatedly with hands or tools,to strengthen the fixing.Of course,for added fixation and waterproofing, you can seal the bottom edge after gluing with clear silicone caulk.At the corners we recommend cutting to 45 degrees, splicing 90 degrees to paste