They Are designed to prevent drivers and passengers from being completely ejected from a vehicle by spreading out their bodies’ energy over their shoulders, chest, and pelvis hinein a collision. Attached with a lap and shoulder belt, with a tether attached. Attached to lower anchorages of child restraint anchorage system, https://www.youtube.com/redirect?q=https://www.ledteks.com/seatbelt-and-safety-belt-webbing