Otter shaped cage made from a single sheet of lightweight 5052 alloyThe arms of the otter cradle your water bottle nice and tight like a mama otter floating on her back with her pup10% of profits from the sale of this cage will be donated to organizations that protect wildlands & wildlifeIncludes two stainless bolts for installation StandardAlloyBrownBraze-onUPC/EAN/GTIN: 812938015557