Holiday Lighting Outlet Surface Clip, Holds C7 or C9's in an Upright Direction, Pack of 100 Used to hold C7 and C9's upright on a hard surface. Does require to be screwed into surface. Includes plastic clip and screw. Commercial lighting grade. You might be interested in some of Holiday Lighting Outlets other selections, including: Shingle Tabs, Parapet Clip, All In One Clip, Mini Light Adhesive Clip, LED All In One Clip, Combo C Clip & Gutter Clip.