<Tr> <Td> Durability </Td> <Td> Low </Td> <Td> High </Td> <Td> Very High </Td> </Tr> <Tr> <Td> Efficiency </Td> <Td> High </Td> <Td> Relatively low </Td> <Td> Very High </Td> </Tr> <Tr> <Td> Maintenance </Td> <Td> Frequent </Td> <Td> Less frequent, special care </Td> <Td> Least frequent, special care </Td> </Tr> <Tr> <Td> Stretching </Td> <Td> Regular </Td> <Td> Limited </Td> <Td> Limited </Td> </Tr>

Difference between an o ring and x ring chain