I maintain pins at an arcade where the games are on free play so they get tons of plays. We have shopped out all the games with Pinball life perfect play rubbers and their Warm white frosted LEDS. The regular flipper rubbers and slings wear out within a month with the natural rubber. So far the synthetic rubber is still going strong after 10,000 plays on most of our games. The LEDs look great but we have not had to change any bulbs in about a year of operation where as the games that have incandescent bulbs have to be changed starting at around 4 months. As others have stated, have flipper rebuilds handy and extra balls.