[Easy to use]: Our suction cups can suck all smooth surfaces. such as windows. glass. tiles. But water can make it fall. It is very suitable for use on caravans and motorhomes. If you need to fix the caravan awning to prevent wind Skirts. wheel covers and porch awnings. etc. will be very convenient. and can also be used to hang clothes and other items in the RV without drilling holes. which is very convenient to use[Super grip]: These circular suction cups provide super grip when connected to a smooth and clean flat solid surface. which is very suitable for use in many places in the RV. and it is easy to disassemble when not in use.[Dimensions]: The diameter of the suction cup is 45mm. the total height (after compaction) is about 1.5cm. the diameter of the knob is 2.5cm. the diameter of the screw is 6mm. and the net length of the screw is 5mm. It can clamp plates with a thickness of less than 3.2mm. Manual measurement. there is an error of about 5mm[Caution for use]: The suction cup is a consumable. it usually needs to be checked and needs to be replaced if necessary. please pay attention to it.packing list:High-Grip Suction Cup fixing pads. X 10