"Keep air drafts out of your ice house with the Catch Cover 9"" Hole Sleeve. You'll stay warmer, your holes will stay ice-free longer, and you'll save money using less propane for heating. Sitting flush to the floor, they're sized to fit inside Catch Cover ice-house hole covers. The lightweight, durable, injection-molded sleeve includes 1"" trim lines to customize length. Mfrs. lifetime limited warranty. Manufacturer model #: CC04-B-9. Lightweight and durable 1"" trim to customize Sized to fit Catch Cover ice-house hole covers"