Used for Haemorrhoid banding and Variceal banding Ligators. 
Non-allergenic and Latex protein free.
Biocompatible Haemorrhoid bands. 
Long shelf life of 5 years.
Premium quality medical grade natural rubber.
Colour : Black 

O-ring Dimensions 
Inner diameter - 1.5mm
Outer diameter - 4.7+/- 0.1mm
Thickness - 1.7 +/- 0.1mm