4×6 inches – In clear protective reusable sleeve 

The river otter is a semi-aquatic mammal found in and along waterways
and coasts. Thick, water-repelling fur protects and insulates them. They 
build burrows close to the water s edge and hunt for fish, frogs, turtles
and shellfish. North American river otters famously love to play together,
which creates strong social bonds, improves hunting skills and marks territory.
A group of otters can be called a family, a lodge or a romp. 

Card back contains lines for mailing address  

Ideal as a postcard or give as a greeting card