The Fat Quarter Gypsy Spring has been designed to be used inside fabric tubes to create collapsible containers. Pop Up Refill Small 5. 5"- Designed for use with pop-up patterns, sold separately. Spring measures about 5. 5" in diameter and about 8" tall when open. Comes with a length of elastic to create a loop that will keep the spring collapsed, and a printed fabric tag with "The Fat Quarter Gypsy" logo.