Replacement Tine Arm for Galfre Model GTS 280 / 520 Hay Tedder. Tine arm is flat Bar, 23" long overall , 1/2" thick, 1 1/2" wide with 12mm mounting holes. This tine arm fits the model GTS280 which is a 9' two basket hay tedder and also fits the GTS520 which is a 17' four basket hay tedder.