What is unique about all 5 wickets taken by Naman Dhir in T20I cricket?

India all-rounder Naman Dhir has taken all five of his T20I wickets on deliveries immediately after conceding sixes. He dismissed Shai Hope, Romario Shepherd and Shamar Springer in this fashion in the first T20I against West Indies in Lucknow. He repeated the pattern against Shimron Hetmyer and Kamil Pooran in the third T20I in Indore.