Dryer Maintenance Kit used on 24 in. gas and electric Whirlpool/Kenmore brands clothes dryers and thin twins. Kit includes (1) No. 3394652 multi-rib belt (2) No. 349241 drum support rollers (1) No. 691366 Idler pulley (4) No. 690997 tri rings and (1) No. 279908 instruction sheet.