KidCoG1101 Auto Close Gateway pressure mount installation

KidCo Gateway Baby Pressure Gate - No Tools or Wall Cups Required - Extra Tall & Wide Auto Close Magnet-Lock Safety Gate, G1201, Black

Wall Nanny - Baby Gate Wall Protector (Made in USA) Protect Walls from Pet Gates & Dog Gates - No Safety Hazard on Spindles - for Child Pressure Mounted Baby Gate for Stairs Cup Guard - White, 4 Pack

Safety Innovations No Hole Stairway Baby Gate Mounting Kit - Fits Posts from 2 3/4 inches to 3 1/2 inches Wide with Square or Round Tops - No Adhesives On Or Screws in Your Posts, (1-Pack)