Propeller Quilt Block Tutorial: 5″, 7-1/2″ and 10″ admin Şubat 13, 2020 Patchwork Leave a comment 25 Views Loading... Loading... With just half square triangles and strip-pieced pairs, you’ll be flying high in no time. Instructions for 5″, 7-1/2″ and 10″ finished blocks. Share Facebook Twitter Google + Stumbleupon LinkedIn Pinterest