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Consists of prepubertal testicles (1 to 3 ml), (4 to 12 ml) and adult testicles (15 to 25 ml). Strong hygienic wooden material on a strong string, easily adjusts. Sturdy drawstring carrying bag included.


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For 100 years, the Endocrine Society has been at the forefront of hormone science and public health. Read about our history and how we continue to serve the endocrine community.