Yellow hooks - are they legal for towing?

Tow Hook Yellow

Hammerlock + Eye Hook for Trailer Safety Chain/Caravan Towing by Georg – George4x4 4WD Recovery Gear

Heavy-Duty Eye Slip Hook Chain 5/16-Inch by 10-Foot

Hitch Safety Chains

Car kitchen - the must have 'ingredients' for building the ultimate

Robert Pepper, Author at RV Daily

Don't De-rate Your Tow! How to Attach Chains When the Connection is Too Small [Ford Super Duty]

Heavy-Duty Industrial 8-Inch Grade 70 Classic Style J Hook

Tow hook hi-res stock photography and images - Alamy

MotoMaster 2,000-lb ATV Tow Strap with Hook, 2-in x 20-ft