The Museum Picture Hanging Hook - (Heavy) easily slides on to the rod and
grabs once the hook is placed in its horizontal position.
The self-locking cam action Rod Hook can support 54 lbs / 24.5 Kg of weight
on Aluminum and 100 lb / 45 kg on a single Stainless Steel Rod.
54 lb / 24.5 kg Per Single Aluminum Picture Hanging Rod
100 lb /45 kg Per Single Stainless Steel Picture Hanging Rod
Note: When using the Museum Heavy Hook on Aluminum Rod
it is highly recommended not to exceed 54 lb / 24.5 kg