Privacy Guaranteed: Your privacy is the utmost importance to us. The default name on the package is " bottles"(any other requirements, please send us a message), and with our discreet packaging you can shop in confidence, the only person who knows what's inside the package is you! To protect your privacy, we will ship the product without our color package. Hope you can understand . Thank you.Your privacy is the utmost importance to us. The default name on the package is " bottles"(any other requirements, please send us a message), and with our discreet packaging you can shop in confidence, the only person who knows what's inside the package is you! To protect your privacy, we will ship the product without our color package. Hope you can understand . Thank you. All the marked product dimensions are the dimensions of the cylinder inner diameter. All products are made of molds, so there is a slight error between each product. The error range of each product is 1-3mm. Electric suction rod and hose The material is made of environmentally friendly acrylic blocks, which can be used with confidence Pump Instructions: Metal tie rod, comfort washer, elastic connecting tube Material: Brass, aluminum alloy, silicone, stainless steel, etc Easy Release Connector Instructions 1.To connect the tubing,press and twist the connector at the end of the tube. 2.When you hear the click,the tubing is fully inserted. 3.To remove,push the metal tab inward and pull the tubing at the base.Youcan remove the tubing and pump while maintaining pressure in the cylinder.