Save time and your breath with ZURU Bunch O Balloons Self-Sealing Party Balloons! Fill tie and string up to 40 party balloons in just 40 seconds! There s no more blowing no more tying and no need to add ribbon or string! Simply attach the stems to our Electric Party Pump* nozzle and press GO! Within seconds your Bunch O Balloons Party stems will fill and self-tie with ease and convenience. (*Electric Party Pump sold separately)