Nica is a rowdy Boxer/Border Collie mix. She is six months old and about 30 pounds. Nica played like gangbusters, she burst through Fort Fido's doors ready to go! We originally thought she would be a Medium Roller but due to her high energy level she started in the Big Roll. Nica had an enjoyable time playing hard, I bet we will be seeing more of her (She's gonna be tired!).