Plastic tube supplied with keys?Gaz04/27/2022 1.05K views04/27/2022 Gaz 04/27/2022 0 Comments Anyone know what the plastic tubes are for that are in the bag of keys? 1 AnswerActiveNewestOldest admin Posted 04/27/2022 0 Comments Those are stabilizer inserts – you definitely want to read the manual before setting up your keyboard! You are viewing 1 out of 1 answers, click here to view all answers. Login