Clover Flower Head Pins are one of the most valuable tools you can have in your sewing kit. The pins have a longer shaft then most pins that glides easily through multiple layers of fabric and work exceptionally well for foundation piecing.
If you have problems with your fabric moving when you are cutting, place the Clover Flower Head Pins through the layers of fabric then place a ruler over the top of your pins and cut your strip. The flower heads are so flat that your ruler will fit perfectly level over the pins. They will take all the stress out of the fabric moving.