The 10 Best 5 Point Harness Baby Swing Reviews & Buying Baby swing harness is engineered for protecting baby when using, with the help of straps tied fixed on the gear, it protects baby from falling off the unit or other potential dangerous. There are two types of harness frequently show on a baby swing, one is 5 point harness, the other is 3 point harness. Amazon: swing harness KingDetector Adjustable Sling Swing Harness for Universal Metal Detector Acessories Reduce Stress On Arm Back Shoulders. 5.0 out of 5 stars 1. $19 $ 19. 99. Get it as soon as Mon, Jul 29. 3 Point Safety Harness for Baby High Chair Kid Safety Strap for Children HighChair. 3.6 out of 5 stars 12. $12 $ 12. 99. Get it as soon as Mon, Jul 29.