IPN Initial Punction Needle Set G18, 2-part, 20 cm useable length Consisting of: outer blunt needle with inner trocar / mandrin Other sizes (e.g. G17) and lengths, with graduation etc. upon request IPN Initial Punction Needle Set G18, 3-part, 20 cm useable length Consisting of: outer blunt needle with inner 2-part needle with bevelled punction tip and mandrin Other sizes (e.g. G17) and lengths, with graduation etc. upon request