By functionality, good clamps. Convenient to use. Does not inspire the credibility of the quality, on the folds is visible white color of plastic, maybe after a while will break down .... Delivery to St. Petersburg in 21 days, the track is fully tracked. In terms of functionality, good clips. Convenient to use. The quality does not inspire confidence, the white color of the plastic is visible on the bends, it may break off after a while .... Delivery to St. Petersburg in 21 days, the track is fully tracked. More photos