These are random shapes - squares, triangles, diamonds in a mixture of sizes from very very tiny to about 3mm wide.
The holographic appearance means that they sparkle and take on different colours in different lights. So they can twinkle like a kaleidoscope and take on many colours.
Packed in 10g pots they are suitable for soaps, bath bombs and candles.
However, they are quite heavy so you will need to experiment if you looking to use them in a melt and pour base as if they are added too soon, they will sink to the bottom. It is best to wait for the soap to cool and thicken a little when you add them.INCI: Polyethylene Terephthalate, Polyurethane 33, CI77000