Areas of use: Fixing signs, decorations, bread makers, shower trays, rattan furniture, towel holders, fairy lights, and home or motorhome decorations. Versatile: Mounts to most smooth, clean surfaces. Provides strong hold on glass. Clean the surface, press the suction cup in place, and installation is complete. Made in Germany: Manufactured in Germany with high quality standards in a small family-owned business. Environmentally friendly production with short transport distances. Simple to use: No drilling or screws required. Attach by pressing into place. Removable without leaving marks or residue, unlike adhesive tapes or films. Dimensions: Suction cup diameter: 40 mm, head diameter: 15 mm. Thread: M4 x 10 mm. Package includes: 8 suction cups and 8 knurled nuts.