Spinning reels have an open face spool that is parallel to the rod. Instead of the spool spinning to retrieve the line, the line is wrapped around the spool by a bail and line roller that rotates around the spool. Spinning reels hang below the rod. These reels are great for casting light lures on light lines because the line is able to flow freely of the spool, and there is no risk of a backlash that is common with baitcast reels. The guides on spinning rods are larger, especially those close to the reel, to accommodate the line coiling as it unwraps from the spool during a cast. Spinning reels are usually not effective at handling heavy lines with a thick diameter or line with a lot of memory. This is due to the tendency of coarse lines to unwrap from the spool or retain their coil shape while casting and retrieving.