Color index cars with ring or sprials

This set includes  6 light colors and a durable metal ring. Cards are 3x5 inches, 80gsm -100gsm paper—resistant to tearing, easy to write on. Pre-punched holes fit the ring perfectly, enabling quick flipping and detaching. Ideal for studying (vocab, formulas), to-do lists, or project notes. Compact design fits bags for on-the-go use. Non-toxic, acid-free paper ensures long-term use without fading.