How to tone my arms..or something!?

I've lost about 110 lbs, sw 331 cw 221, took me about 18 months, I did it dieting and doing mostly cardio so my calves are super toned. But now my body is smaller, but I have there flabby swinging upper arms. My biceps have a nice muscle but my triceps hang more than Jay and Silent Bob. First I want to know if it's even possible to get my arms any smaller, then if so i'd love to know how! Please and thank you.