The ruler kit is suitable for all Bernina models including the Bernina Q 20 sit down model long arm. 
 
It is equiped with small, simple patterns, making it especially suitable for beginners. The smaller patterns are easy to handle when moving them with the quilt beneath the machine. Adjustable ruler foot #72 is recommended to use for this purpose.
 
The kit contains 5 rulers:
 
Mini straight line tool 6 1/2"
Mini 4-in-1 4 1/4 x 6 1/4" 
Squiggle 1 3/4" x 5/8"  and 5" x 3/4"
Nested mini circles 1" - 4"
Nested mini ovals 1 1/2" x 1"  - 4 1/2" x 2 1/2"