Zara pumps, heels, trapezoid, black, size 38 (fits 23.5cm - 24cm) Heel: 7cm The heels are trapezoidal. The material is nylon and smooth. I fell in love with them and bought them. Personally, I think they look better in person than in the photos. I've worn them about twice, but lately I've been wearing loafers, so I'm selling them. No box included.