Use for insemination of sperms in uterine cavity AVAILABLE IN: 4cms. (makler) 9cms. (standard, hard, front open) 11 cms. (Side open soft Tip) 12 cms. (DC, soft, front open) 15 cms. (special, soft, side open with guard) 17 cms. (side open front open, with guard & BD syringe) 17 cms. (Curved Side open, with Soft Tip)