The Bloc Loc Flying Geese Quilting Ruler is an essential tool for quilters aiming for precision and efficiency. Designed for 4” x 8” finished units (trimming to 4.5” x 8.5”), this ruler features a patented groove that locks onto the seam allowance, preventing slipping and ensuring accurate cuts every time.​ Constructed from durable clear acrylic, it offers excellent visibility for precise alignment. Whether you're crafting flying geese blocks, square-in-a-square units, or other intricate designs, this ruler simplifies the process, making it faster and more accurate.​