A shock absorber for a toy building set

a buffer for a set of toy building is presented, the damper comprises a basically shaped rod having, at one end, a collar and a guide having a sleeve enclosing displaceably element rodlike; and wherein the rod-shaped element and the guide each comprises means for mounting on another construction; and wherein a spring in one end, is supported on the element rodlike are available and, at its other end, is supported on the sleeve such that the spring force is used to move the sleeve towards the collar on the first mounting element. The guide comprises a substantially filling the cylindrical member air having an inner substantially cylindrical wall that is configured so that the collar on the element rodlike can move leaning on the inner wall of the cylinder-shaped, whereby seobtiene a pneumatic damper.