They will eat your aluminum rims up.
http://www.amazon.com/DiamondBack-53-11-104-Diamondback-Softee-Brake/dp/B002K2F4H0
These are cheap as dirt, have thick pads with wear indicators, and work in the rain.
http://www.amazon.com/DiamondBack-53-11-104-Diamondback-Softee-Brake/dp/B002K2F4H0
These are cheap as dirt, have thick pads with wear indicators, and work in the rain.