From the manufacturer:
EASY-SQUEEZE
Premium add-ons make it easier to squeeze the door rods for opening and closing. It requires less finger spread and strength. Ideal for those wearing gloves, those who have small fingers or arthritis or lack hand strength. Connects to/fits any kennel brand with 3/16” dia. rod 4 piece set, completes one door.
For double-door kennels you will require two Easy Squeeze kits.
THIS IS A NON-RETURNABLE PRODUCT
Manufacturer's warranty info can be found here: https://rufflandkennels.com/warranty-policy/