From the Brand:

For a statement hair accessory, laden your tresses with the Let's Dance hair clips. The style comes in four colour ways; mix and match for maximum effect!
Made from marbled cream acrylic, the hair slides feature gold tone hardware. 
Size
Width: 5. 5cm (longest clip)
Height: 1. 5cm
Care:
Please be gentle with your new Perspex piece. While Perspex may look resilient, it can break if dropped or knocked against a hard surface. When not in use, store in its original packaging. Please keep away from perfume and hairspray, and gently clean with a microfiber cloth.

This item is sold from a vintage boutique in Los Angeles.