The SONOtrain Foreign body is an ultrasound block with 6 different foreign bodies for insertion: Pellets, shard of glass, nail, projectile, loose chippings and splinters of wood can be clearly detected and recognized. Punctures and injections are possible with self-closing injection channels. The material of the SONOtrain trainer simulates the feel of real soft tissue for carrying out palpations and injections and shows realistic texture and echogenicity on ultrasound images. The SONOtrain trainer is easy to use as a teaching tool for basic training and for improving dexterity and hand-eye coordination skills.