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. Excellent hold on glass. Clean the surface, press the suction cup in place, and it's ready to use. Made in Germany: Produced with high quality standards in a small family-run business. Environmental benefit: Local manufacturing helps reduce carbon footprint. Simple installation: No drilling, no screws. Just press and use. Removable without leaving traces: No adhesive 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.