Set of 30 suction cup string lights with cable slot - 30 mm. For attaching string lights. Ideal for windows and many other smooth surfaces. These suction cups with a cross-hole for string lights are made of PVC. The string light holder is transparent. These discreet and practical suction cup holders are ideal for attaching string lights and many other decorative items. Clean the surface thoroughly with a glass cleaner before attaching. Then press the suction cups onto the desired surface. Thanks to the narrow slot, wires or cables can be inserted without tools. The suction cups leave no residue and are easy to remove. These suction cups are ideal for hanging string lights, garlands, bedside decorations, straw stars, etc. The suction cup adheres to many smooth surfaces, such as windows, car windows, tiles, mirrors, etc. The suction cup can be used for decorative purposes in stores, at fairs and events, as well as in private spaces. Ideal for Christmas decorations.