Patented Bloc-Loc channel locks seam allowance for stable, accurate squaring
1/8 inch clear acrylic layer prevents slipping and rocking during use
Easy-to-read solid markings for precise measurements
No turntable required, simplifying the squaring process
Durable acrylic construction for long-lasting use
Summarized by Shop
Has the Bloc Loc patented technology channel machined for accuracy underneath 1/8" clear acrylic which locks the seam allowance in place and allows the quilter to square up a half-square triangle block in just seconds with ultimate accuracy and safety.
No turntable is necessary, just turn the ruler and your fabric moves with Bloc Loc!!!