Buying more than 10 uds get a discount of 12,89 € per unit Buying more than 15 uds get a discount of -1,62 € per unit Buying more than 15 uds get a discount of -1,82 € per unit Buying more than 20 uds get a discount of 11,99 € per unit Buying more than 20 uds get a discount of -1,34 € per unit