The rack includes screws for fixing to wall or cupboard doors. TIER SPICE JAR RACK KITCHEN CUPBOARD DOOR WALL MOUNTED STORAGE UNIT 2/3/4/5. 2 Tier = Holds upto 16 Jars. 3 Tier = Holds upto 24 Jars. 4 Tier = Holds upto 32 Jars.
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