Spring with hook for spark plug attachment. Models: Chainsaw: 015, 020, 024, 026, 028, 034, 036, 041, 042, 048, 051, 064, 070, 075, 076, 08, 090, MS 200, MS 240, MS 261, MS 271, MS 291, MS 311, MS 362 Blower: BG 17, BR 320, BR 340, BR 380, BR 400, BR 420 Drill: BT 360 Brush cutter: FS 150, FS 151, FS 160, FS 180, FS 200 - 4109, FS 202, FS 360, FS 410, FS 420, FS 500, FS 550, FS 75, FS 80, FS 85 Pruner: HT 70, HT 75 kombi: KM 85