Pre-Drilled Countersunk Hole (4 Hole/3.3FT) , Tight Fit and Flush Mounted ,Protect The Profile From Scratch By The Mounting Clips ,Easy Installation, Clean Outlook and Professional Extension<br>, Translucent Diffuser is Easy Snaped Into The Channel, It Does Not Only Protect The Exposed Strip From Dust And Moisture But Also Evening And Smooth Out The Lights Well With 90% Transmittance Rate .The Cover Is Protected By Removable Film Initially<br>, The Channel Can Be Trimed To Required Length Easily By Hacksaw and Grinder,The Cover Can Be Cutted By Utility Knives and Scissors, 45 Degree End Cut Is Supposed For A 90 Degree Corner . <br>, The Aluminum Track is Designed To Hold The Strip Less Than 12.4mm(0.49’’) Wide ,It Fit For a Majority of 5050 5630 2835 Steady Color ,RGB ,RGBW and Programmable Tape<br>, The Package Included Pre-Drilled Channel 3.28FTX5 ,Milky PC Cover X5 , M3X12(Stainless steel) /M3X20 (Carbon Steel)X20 ,Wall Anchor X20 ,End caps With Hole X5 ,End cap without Hole X5<br>