Big Impression (Rim-Lock) to Schreinemakers for the lower jaw, especially for the impression of the edentulous jaw, comfortable fit, good hold of the impression material in the tray, made of high quality medical grade stainless steel, can be supplied with or without its own logo, available chrome and the anodized black, blue metallic, gold, rose gold, anodizing is resistant even to multiple thermal disinfection and sterilization.