Quoted from FrostyMug:To install mine I put each pair in the microwave for 30 seconds. It made them more flexible (stretchy) to pull over the flipper. Be careful not to overheat them, they can get real hot. Each microwave is different so the first pair, on your microwave, please go in 5 second increments until you reach a more soft but not too hot to handle temperature. Then simply install
Clever. I just use zip-tie to pull it to bat.