Better Wiper Arms???

Does any company offer a more modern or improved wiper arm design? I've had bad luck keeping wiper blades securely attached to the arms; they either slide off or kind of roll of the arm.

I know its a dumb question but as much as it rains during the summer wipers are a must.

Thanks,
Jack

Jack, I have seen them on Classic Industries web sight. the parts store ones will roll on the arm, I know what you mean.