Diameter | Rubber stopper diameter usually ranges from a few millimeters to several centimeters. The most common sizes are 6mm, 8mm, 10mm, 12mm, 16mm, 20mm, 25mm, and 30mm. |
Length | Rubber stopper length also varies widely, ranging from a few millimeters to several tens of centimeters. Common lengths include 8mm, 12mm, 16mm, 20mm, 25mm, 30mm, 40mm, and 50mm. |
Taper | Rubber stopper taper usually refers to its slope, used to match the taper of the container or equipment. Common tapers include 1:10, 1:5, 1:3, and so on. |
Aperture | Rubber stopper aperture is usually used to connect with other equipment or add reagents. Common aperture sizes include 1mm, 2mm, 3mm, 4mm, and 5mm. |