Ring Calcium

Aura: faint transmutation; Caster Level: 5; Body Slot: ring; Price: 2500gp; Weight: -

This ring strengthens the bones of any who wear it, providing a +1 enhancement bonus to natural armor and making them immune to any diseases or effects that would weaken bones (such as osteoporosis). The enhancement bonus provided by this ring may be applied as an untyped bonus to any save made against a spell or ability that explicitly targets the characters bone, such as the spell bone shatter.