5Dimes has them at -120, though it is unclear from their rules what happens on a tie
Parlays - A parlay is a group of straight bets or totals combined into one bet. For the parlay to be a winner, all of the individual parts of the parlay need to win. You can mix different sports on the same parlay.
Open-parlays are available for phone wagering. In this option you may choose to leave one or more selections in your parlay "open". You can call at a later time to fill in the spots on that parlay if it is still pending (no losers on the parlay).
Teasers - A teaser is a group of straight bets or totals combined into one bet. The difference between a parlay and a teaser is that with a teaser, the line you bet against for each individual wager is moved to your favor by the number of points of the teaser. If the regular line is -10 and you have a 6-point teaser, then your line would be -4.
As with a parlay, all of the individual parts need to win for the teaser to be a winner. Teasers are not yet available for baseball or hockey.