Get a guaran teed evolution item on your 7 day First PokeStop of the Day' streak
Use This item on your pokémon go
Metal coat transforms Onix into Steelix or Scyther into Scizor.
King's rock transforms Slowpoke into Slowking or Poliwhirl into Politoed.
Dragon Scale transforms Seadra into Kingdra.
Sun stone transforms Gloom into Bellossom or Sunkern into Sunflora.
Upgrade transforms Porygon into Porygon2.