Pack of racks at spinner post 092 (2-sided adhesive tape) and a pair of scissors. Also take a piece of paper and isopropanol and put isopropanol on the paper. (photo 4). Clean the strips with this.Stick 2-sided adhesive tape on the strips (photo 5) and press firmly with your thumb. Put pasted yellow covers back in plastic (photo 6) and put them back in 2bin rack