Since 1 January 2018 you may bring free goods to Ukraine across the state border weighting up to 50 kg and worth up to €500 (€1000 via airplane) if you were absent in Ukraine more than 24 hours and it was 72 hours ago. If not — then goods worth only up to €50 are permitted to bring free. Since 2019 the new rule for international mail will apply — you may get free only three packages a month worth €150 each.