CBConcept Mounting Clip With Screw For 120V SMD5050 LED Strip Light, Fixings For LED Single color Strips, Pack of 30 Units This Is For CBConcept Brand 120V SMD5050 LED Strip Light With Dimension 0.51 Inch Width X 0.31 Inch Thickness Use mounting clips to secure your 120 volt LED Strip Lights to walls, under cabinets, crown molding, or for any other lighting project that requires straight lines. To achieve a professional look we recommend installing one clip every twelve inches. Pack of 30 Units Come With 2 Screws/each Clip