?????¡¾Upgraded Nonslip Pet Dog Ramps¡¿ We have upgraded the dog ramps to address the problems of some similar dog ramps on the market, such as no non-slip, unstable ramps, and easy overturning causing dogs to be injured. We added 2 removable support bars at the bottom of the ramp to make it stronger and more stable. We also added 5 wooden anti-skid strips to the ramp surface to make sure the dog doesn't slide down the ramp, and to protect the dog from bad-quality dog ramps