Many gates include multi-mode locking and one-handed operation. Examples in the listings are 3-way locking (Locked | Quick Unlock | Full Unlock), easy one-handed push/twist/release mechanisms, and padlock hasps (some folding gates include a padlock and keys).
Some product listings explicitly state they meet ASTM standards; at least one listing mentions meeting or exceeding ASTM or EN standards used for safety testing.
Warranty lengths shown in the listings include 30 Day Limited, 3 Month Limited, and 1 Year Limited.