Specification Round diameter 20mm, thickness 2mm Round diameter 20mm, thickness 1mm (suction force is about 25 grams) Round diameter 40mm, thickness 1.5mm (suction force about 150 grams) Round diameter 60mm, thickness 1.5mm Round diameter 80mm, thickness 1mm Customized photo shoot, contact customer service to change the price Round diameter 13mm, thickness 1mm Round diameter 15mm thick 2mm Round diameter 20mm, thickness 2mm (no word adhesive) (suction force is about 60 grams) Round diameter 20mm, thickness 1.5mm (suction force about 40 grams) Round diameter 20mm, thickness 2mm (suction power about 60 grams) Round diameter 15mm, thickness 1mm Round diameter 15mm, thickness 1.5mm Round diameter 25mm, thickness 1mm (suction power about 35 grams) Round diameter 25mm, thickness 1.5mm (suction power about 55 grams) Round diameter 25mm, thickness 2mm (suction force about 90 grams) Round diameter 30mm, thickness 1mm (suction power about 55 grams) Round diameter 30mm, thickness 1.5mm (suction force about 100 grams) Round diameter 30mm, thickness 2mm (suction force about 130 grams) Round diameter 35mm, thickness 1mm (suction power about 70 grams) Round diameter 35mm, thickness 1.5mm (suction force about 130 grams) Round diameter 35mm, thickness 2mm (suction power about 150 grams) Round diameter 40mm, thickness 1mm (suction power about 90 grams) Round diameter 40mm, thickness 2mm (suction force about 190 grams) Round diameter 45mm, thickness 1mm Round diameter 45mm, thickness 2mm Round diameter 50mm, thickness 1mm Round diameter 50mm, thickness 1.5mm Round diameter 50mm, thickness 2mm Round diameter 60mm, thickness 1mm Round diameter 60mm, thickness 2mm Round diameter 70mm, thickness 1mm Round diameter 70mm, thickness 1.5mm Round diameter 70mm, thickness 2mm Round diameter 80mm, thickness 1.5mm Round diameter 80mm, thickness 2mm Round diameter 100mm, thickness 1mm Round diameter 100mm, thickness 1.5mm Round diameter 100mm thick 2mm Round diameter 18mm thick 1mm Round diameter 18mm, thickness 2mm Round diameter 120mm, thickness 1mm Round diameter 120mm, thickness 1.5mm Round diameter 120mm, thickness 2mm