Live arb is a mathematically calculated arbitrage situation which appears due to bookmakers odds difference in live betting. Consequently, you have a chance to to bet all the opposing outcomes of the event at different bookies and get profit!
Only experienced arbers are advised to work with live arbs. It is due to quick odds change.
You have to have a great knowledge and experience to succeed with live arbs.
Live arbs are attractive for gamblers as their profitability is higher, bankroll is returned much quickly and risk to be limited is much lower than on prematch.
However, the odds are changing very quickly, so only experienced arbers are advised to work with them