Embroidery Hoop - multiple dim, elastic closure

I designed this embroidery hoop because I couldn't find anything with a simple closure. 

The only thing needed to close the hoop is an elastic or a thread, or everything you can think of. 

I hope this design could be helpfull also to someone else. 

I'm thinking to add a bigger profile in the future. 
 

If you like it, please leave a review, I'm excited to see some works made with this tool.