Ladder Stabilizer, Heavy Duty 375 lbs Weight Rating Ladder Extension Stabilizer for Roof Gutters Wall Ladder Standoff Ladder Accessories for Little Giant Ladder (Orange) - Amazon.com
Ladder Frog - Extension Ladder Stabilizer, prevents top of ladder from sliding on gutters, etc. - Walmart.com
Ladder Standoffs: is the ACRO or Ladder-Max best for use on a roof - YouTube
Ladder safety Secure a Ladder By Utilizing a Lock Jaw Ladder Grip — Lock Jaw Ladder Grip - Ladder Safety Device - Safety secure your ladder to guttering
Ladder Stand Off, for Gutter Guard Installation - GutterBrush
Gutter Clamp Ladder Stabilizer
Ladder Stabilizer Stand Off - Ladder Frog Aluminum Extension Ladder Safety Grip Support and Surface Protection - Fall Prevention Accessory Attachment for Roofing, Gutters (1 Pair) - Amazon.com
Lock Jaw Ladder Grip, (1 single unit) Ladder Stabilizer, Fits on Gutters in Seconds, Slide Lock, Rolling Safety Device, Ladder Gutter Clip: Amazon.com: Tools & Home Improvement