I bought these magnets to the use of a flap of another brand. No worries. And thus perfect size for little more discretion. By cons, this is my second order since Christmas because my cat has lost or broken top 4. Indeed, the ring hole is adjacent making the plastic more brittle and thus weaker than if it was located a little to the center. So why buy you might say. Well despite the fact to renew the "often", their cost remains concerned that the magnets (larger) found in stores. Note to avoid the metal on the collar ... The mouse could hold on to it and you will lose the interest it hangs.
