For small construction workers Absperrhütchen are simply ideal and have a high play value. You can shut adults and only leave to kiss, regulate Bobbycar Trafficking and protect invisible construction holes. The price-performance ratio is excellent, and the quality is good. They are made of sturdy plastic, fit in size fit for children. The strips are glued, but do not go off. I bought 2 sets equal, for our child and also the neighbor's child. Both play with hardly nachlassendem interest it.