Techno Source 12616 Zippy Sack Dino Twin Size One (1) Zippy Sack Dino twin size fleece blanket for kids age 4 and older Fits any twin bed. Durable plastic zipper. Zips on one side only Easy to put on and stays in place. Easier for kids to make their bed in seconds Machine washable fleece. 100% polyester fabric. Mom approved Works just like a fitted sheet. Measures 75"L x 39"W x 12"D