{
  "description": {
    "translate": "",
    "fallback": "Rock Hard"
  },
  "supported_items": "#minecraft:foot_armor",
    "weight": 1,
    "max_level": 1,
    "min_cost": {
      "base": 999999,
      "per_level_above_first": 999
    },
    "max_cost": {
      "base": 999999,
      "per_level_above_first": 9999
    },
    "anvil_cost": 9999,
  "slots": [
    "feet"
  ],
  "effects": {
    "minecraft:damage_immunity": [
      {
        "requirements": [
          {
            "condition": "minecraft:damage_source_properties",
            "predicate": {
              "tags": [
                {
                  "id": "minecraft:is_projectile",
                  "expected": true
                }
              ]
            }
          },
          {
            "condition": "minecraft:entity_properties",
            "entity": "this",
            "predicate": {
              "movement": {
                "speed": {
                  "max": 0.001
                }
              }
            }
          }
        ],
        "effect": {}
      }
    ]
  }
}