Features: Sturdy to use: Made of acrylic, the triangle squared ruler is solid and firm, reliable in quality, hard to deform, fade, or break, smooth and flat for you to touch. You can use it with ease and confidence. Delicate gifts to send: You can send the art triangle ruler as a gift to your kids, classmates, close friends, family members, students, neighbors, and other DIY lovers, showing your care and love for them in this simple way. Specifications: Material: acrylic Main color: transparent Size: approx. 5 x 5 inches, and 10 x 10 inches Package includes: 2 x Triangle quilting rulers Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. Pointed items included, please use with care.