you can choose one of these items:

Shield (Unbreaking 3 + Mendig)

Diamond Pickaxe (Efficiency 5 + Unbreaking 3 + Mendig)

Diamond Axe (Efficiency 5 + Unbreaking 3 + Mendig)

Diamond Axe (Sharpness 5 + Unbreaking 3 + Mendig)

Diamond Helmet (Protection 4 + Unbreaking 3 + Mendig)

Diamond Chestplate  (Protection 4 + Unbreaking 3 + Mendig)

Diamond Liggings  (Protection 4 + Unbreaking 3 + Mendig)

Diamond Boots (Protection 4 + Unbreaking 3 + Mendig)