Tether clip locks garnish to vehicle body pillar, and when airbag body expands, tether clip releases garnish from vehicle body pillar without breaking garnish and prevents flying of garnish. Tether clip covers, from vehicle interior side, vehicle body pillar in which airbag body is housed, wherein tether clip locks garnish to vehicle body pillar. Tether clip includes: inner locking portion locked to pillar garnish; outer locking portion locked to vehicle body pillar; connecting portion for connecting inner locking portion and outer locking portion; and wire for tethering inner locking portion and outer locking portion to each other, wherein connecting portion is formed fragile against pressing force that is generated when airbag body presses garnish by expanding and developing, and wherein wire is wound around either inner locking portion or outer locking portion in direction around axis extending from inner locking portion to outer locking portion.