These scaler products change the size of feet and shoes. Some products such as many of the heels and boots are attached to the calf and can’t be changed by using feet scalers. Instead use calf scalers for scaling those.

All my scalers can be used for both male and female avatars.

Some products don’t work together with other products. Try one of the backup scalers in case a scaler has issues with a specific product you wish to use.