diff --git a/data/item/item_data.json b/data/item/item_data.json
index ae31d321c..ea0c75854 100644
--- a/data/item/item_data.json
+++ b/data/item/item_data.json
@@ -23,7 +23,7 @@
             true
         ],
         "order": 50,
-        "unkThrow1B": [
+        "spawnAmountRange": [
             6,
             10
         ],
@@ -43,7 +43,7 @@
             true
         ],
         "order": 48,
-        "unkThrow1B": [
+        "spawnAmountRange": [
             5,
             8
         ],
@@ -63,7 +63,7 @@
             true
         ],
         "order": 49,
-        "unkThrow1B": [
+        "spawnAmountRange": [
             5,
             8
         ],
@@ -83,7 +83,7 @@
             true
         ],
         "order": 47,
-        "unkThrow1B": [
+        "spawnAmountRange": [
             5,
             5
         ],
@@ -103,7 +103,7 @@
             true
         ],
         "order": 45,
-        "unkThrow1B": [
+        "spawnAmountRange": [
             5,
             5
         ],
@@ -123,7 +123,7 @@
             true
         ],
         "order": 46,
-        "unkThrow1B": [
+        "spawnAmountRange": [
             5,
             5
         ],
@@ -143,7 +143,7 @@
             true
         ],
         "order": 52,
-        "unkThrow1B": [
+        "spawnAmountRange": [
             3,
             5
         ],
@@ -163,7 +163,7 @@
             true
         ],
         "order": 51,
-        "unkThrow1B": [
+        "spawnAmountRange": [
             7,
             10
         ],
diff --git a/include/item.h b/include/item.h
index 4399e7925..ac62267c3 100644
--- a/include/item.h
+++ b/include/item.h
@@ -19,7 +19,7 @@ struct ItemDataEntry
     /* 0x14 */ bool8 aiFlags[3];
     /* 0x18 */ s16 moveID;
     /* 0x1A */ u8 order; // Numbered order they are in storage
-    /* 0x1B */ u8 unkThrow1B[2];
+    /* 0x1B */ u8 spawnAmountRange[2];
     /* 0x1D */ u8 palette;
     /* 0x1E */ u8 actionType;
 };
@@ -70,6 +70,9 @@ enum ItemAIFlag
 #define INVENTORY_SIZE 20
 #define STORAGE_SIZE NUMBER_OF_ITEM_IDS
 
+#define MIN_SPAWN_AMOUNT 0
+#define MAX_SPAWN_AMOUNT 1
+
 void LoadItemParameters(void);
 struct TeamInventory *GetMoneyItemsInfo(void);
 void InitializeMoneyItems(void);
@@ -89,7 +92,7 @@ s32 GetItemSellPrice(u8 id);
 s32 GetItemOrder(u8 id);
 u8 GetItemPalette(u8 id);
 u32 GetItemActionType(u8 id);
-u32 GetItemUnkThrow(u8 id, u32 r1);
+u32 GetSpawnAmountRange(u8 id, u32 r1);
 u8 *GetItemDescription(u8 id);
 bool8 GetItemAIFlag(u8 id, u32 r1);
 void sub_8090DC4(void* param_1,u8 id, struct unkStruct_8090F58* param_3);
diff --git a/src/items.c b/src/items.c
index 4686c0f0a..0c55bccb7 100644
--- a/src/items.c
+++ b/src/items.c
@@ -37,8 +37,6 @@ extern u8 gInvalidItemIDs[0x10];
 EWRAM_DATA struct OpenedFile *gItemParametersFile;
 EWRAM_DATA struct ItemDataEntry *gItemParametersData;
 
-extern u8 GetItemCategory(u8);
-extern u32 GetItemUnkThrow(u8, u32);
 extern s32 sub_8090FEC(s32 a1, u8* a2, u8 a3);
 extern void sub_80073B8(u32);
 extern u32 sub_8097DF0(char *, struct subStruct_203B240 **);
@@ -115,8 +113,8 @@ void xxx_init_itemslot_8090A8C(struct Item *slot, u8 id, u8 param_3)
     slot->flags = ITEM_FLAG_EXISTS;
     slot->id = id;
     if (IsThrowableItem(id)) {
-        uVar3 = GetItemUnkThrow(id, 0);
-        uVar4 = GetItemUnkThrow(id, 1);
+        uVar3 = GetSpawnAmountRange(id, MIN_SPAWN_AMOUNT);
+        uVar4 = GetSpawnAmountRange(id, MAX_SPAWN_AMOUNT);
         slot->quantity = RandRange(uVar3, uVar4);
     }
     else if (GetItemCategory(id) == CATEGORY_POKE)
@@ -143,8 +141,8 @@ void xxx_init_helditem_8090B08(struct BulkItem *held, u8 id)
   if (id != ITEM_NOTHING) {
     held->id = id;
     if (IsThrowableItem(id)) {
-        uVar2 = GetItemUnkThrow(id,0);
-        uVar3 = GetItemUnkThrow(id,1);
+        uVar2 = GetSpawnAmountRange(id,MIN_SPAWN_AMOUNT);
+        uVar3 = GetSpawnAmountRange(id,MAX_SPAWN_AMOUNT);
         held->quantity = RandRange(uVar2, uVar3);
     }
     else if (GetItemCategory(id) == CATEGORY_POKE)
@@ -283,9 +281,9 @@ u32 GetItemActionType(u8 id)
     return gItemParametersData[id].actionType;
 }
 
-u32 GetItemUnkThrow(u8 id, u32 r1)
+u32 GetSpawnAmountRange(u8 id, u32 rangeIndex)
 {
-    return gItemParametersData[id].unkThrow1B[r1];
+    return gItemParametersData[id].spawnAmountRange[rangeIndex];
 }
 
 u8 *GetItemDescription(u8 id)
diff --git a/tools/dungeonjson/dungeonjson.cpp b/tools/dungeonjson/dungeonjson.cpp
index 6adb0d034..d4c64666d 100644
--- a/tools/dungeonjson/dungeonjson.cpp
+++ b/tools/dungeonjson/dungeonjson.cpp
@@ -673,7 +673,7 @@ string generate_item_data_text(Json data) {
             << "\n.byte 0"
             << read_json_string(data_entry["moveID"], 2)
             << read_json_int(data_entry["order"], 1)
-            << read_json_int_array(data_entry["unkThrow1B"], 1, 2)
+            << read_json_int_array(data_entry["spawnAmountRange"], 1, 2)
             << read_json_int(data_entry["paletteID"], 1)
             << read_json_string(data_entry["actionType"], 1)
             << "\n.byte 0\n";