There are 3 Hebrew letters on the mezuzah Shin Dalet Yod. These are first letters of SHOMER DLATOT ISRAEL or Guardian of the Doors of Israel - one of the names of G-d. It has additional meaning - "almighty".
Handcrafted in Israel.
Length: 5cm/1.9inch
Includes 925 sterling silver matching chain (44cm/17.5inch) and a gift box.