Embroidery hoop frames hold the embroidery hoop for you, freeing up both hands for stitching!
 
There are 2 options for your base:
table clamp (clamps on to your table or desk)
seat frame (held under the leg when sitting)
 
Then there are option for your hoop attachment:
versatile clamp attachment (any hoop can clip in)
6 inch attachment
8 inch attachment
10 inch attachment
 
Check out this video to see the different option explained:
https://youtu.be/EcTo71kEpKU