diff --git a/data/obj_item.json b/data/obj_item.json
index 01f1762..d00459e 100644
--- a/data/obj_item.json
+++ b/data/obj_item.json
@@ -1767,7 +1767,7 @@
   {
     "item_type": "item_other",
     "code": "a27",
-    "weight": -1,
+    "weight": 450,
     "exchange": "",
     "auction": true,
     "craftable": true,
@@ -1910,7 +1910,7 @@
   {
     "item_type": "item_other",
     "code": "a30",
-    "weight": -1,
+    "weight": 125,
     "exchange": "",
     "auction": true,
     "craftable": true,
@@ -2094,7 +2094,7 @@
   {
     "item_type": "item_other",
     "code": "a34",
-    "weight": -1,
+    "weight": 125,
     "exchange": "",
     "auction": true,
     "craftable": true,
@@ -9623,7 +9623,7 @@
   {
     "item_type": "item_other",
     "code": "w91",
-    "weight": -1,
+    "weight": 220,
     "exchange": "",
     "auction": true,
     "craftable": true,