Brick Wedged, Curved 2 x 2 with Stud Notches
Part Number 66956
Name Brick Wedged, Curved 2 x 2 with Stud Notches
Category Bricks Wedged
Material Plastic
4 related parts (same mold or print family)

Variants of a mold are catalogued separately, so each one has its own sets and minifigs. Check these too if something you expect is missing here.

Appears in 271 sets
Black (73 sets)
    White (64 sets)
      Red (39 sets)
        Light Bluish Gray (28 sets)
          Bright Light Orange (13 sets)
            Bright Pink (12 sets)
              Dark Red (12 sets)
                Blue (9 sets)
                  Dark Brown (8 sets)
                    Lime (8 sets)
                      Dark Turquoise (7 sets)
                        Dark Tan (5 sets)
                          Sand Green (5 sets)
                            Dark Purple (4 sets)
                              Reddish Brown (4 sets)
                                Bright Light Yellow (3 sets)
                                  Medium Lavender (3 sets)
                                    Yellow (3 sets)
                                      Dark Azure (2 sets)
                                        Bright Green (1 set)
                                          Medium Nougat (1 set)
                                            Metallic Silver (1 set)
                                              Olive Green (1 set)
                                                Orange (1 set)
                                                  Appears in 6 minifigs across 1 set
                                                  fig-017081 Arika, Centipede (in 1 set)
                                                    fig-012407 Dorrie (in 0 sets)
                                                      fig-014676 Dorrie (in 0 sets)
                                                        fig-014253 Dry Bowser (in 0 sets)
                                                          fig-015531 Gun Wing (in 0 sets)
                                                            fig-012406 Polterpup (in 0 sets)