Anti-tip wheels on mobility scooters minimize the risk of tipping on slopes or uneven edges

https://www.scribd.com/document/1051395956/Who-s-The-Top-Expert-In-The-World-On-Purchase-Mobility-Scooters-163629

Anti-tip wheels on mobility scooters reduce the risk of tipping on slopes or unequal edges, including stability during doglegs and ramp gain access to.