Surgical stainless steel Ball flasks are hollowed out steel canisters for imprisonment of the male testicles. A specially designed ball collar fits above the orbs, and connects to the steel jar. The flask has a removable base plate from which a "U" shaped hanger is attached. Additional weights or securing chains can be added, or with the plate removed, access attained. Dimensions: Inner diameter 36 mm (1 2/5"), outer diameter 75 mm (3"), depth 78 mm (3")
