<prompt> What is the following device used to measure?Ovarian sizeSize of a TumorSize of FecolithTesticular size  <response>: Orchidometer-used to measure testicular size - Stretch the scrotal skin and measure testicular size with orchidometer. - Testicular enlargement first sign of pubey in boys For the assessment of pubey -Tanners staging or SMR Sexual Maturity rating Pubey in females :1st sign - Thelarche development of breast buds 