diff --git a/mods/bambu/bambu.js b/mods/bambu/bambu.js
index 44c6d0ce..c51318ee 100644
--- a/mods/bambu/bambu.js
+++ b/mods/bambu/bambu.js
@@ -916,7 +916,10 @@ self.kiri.load(api => {
                                 ev.stopPropagation();
                             },
                             onmouseenter(ev) {
-                                clearTimeout(ev.target.__timer);
+                                let { target } = ev;
+                                let { bambu } = target;
+                                target.title = bblapi.filament.map[bambu.tray_info_idx];
+                                clearTimeout(target.__timer);
                             },
                             onmouseleave(ev) {
                                 ev.target.__timer = setTimeout(() => {
diff --git a/web/kiri/index.css b/web/kiri/index.css
index fac0276f..55e8df84 100644
--- a/web/kiri/index.css
+++ b/web/kiri/index.css
@@ -2382,6 +2382,7 @@ details[open] summary::after {
     padding: 2px 4px 2px 0;
     flex-grow: 1;
     font-size: smaller;
+    text-align: left;
 }
 .var-row .dim {
     text-align: right;