Panel 1 x 2 x 2 with Side Supports - Hollow Studs with Light Bluish Gray Curved Triangle Pattern Model Right Side (Sticker) - Set 10262 : Part 87552pb095R | BrickLink
Panel 1 x 2 x 2 with Side Supports - Hollow Studs with Light Bluish Gray Curved Triangle Pattern Model Left Side (Sticker) - Set 10262 : Part 87552pb095L | BrickLink