Purchased from Mefferts 2007.
(plastic with plastic tiles, 2.5 inches)

This is the same puzzle as the Pyraminx, without the tips (or the same as Jing's Pyraminx without the centers), and the same solution can be used. The colors are arranged so that the yellow triangle is opposite the blue face, the blue triangle is opposite the yellow face, the red face is opposite a green triangle, and the green face is opposite a red triangle)

Note: Without tips to keep you oriented, it can help to determine the colors of the sides once at the start, and then for the remainder of the solving, keep the puzzle in a fixed orientation with the same side facing down and the same side facing you.