We recommend you to use ruler gripping dots to be attached under the template to avoid slippery. You may order this product online in this store. https://www.ebay.com.au/itm/173243585985
These Hobby Quilt templates are laser-cut from 5mm acrylic and laser-engraved (etched) on the back side to reduce parallax errors and for long-lasting accuracy when quilting.
For home sewing machines, please use 1/4" ruler foot to achieve a perfect shape desired. You may order these special ruler feet in this store.
Remarks: Picture shown is with "red" marking lines. However, the product is engraved/etched by laser without color. So we recommend you to use water-based marking pen preferably in "red" or "pink" color to color the etched markings or lines for better visibility.