You need to fit your cat's claws into the guillotine, and then close the clippers on the right part of the claw. The hole is much bigger than the claw and the blade has a long distance to travel, making the whole experience quite stressful for both of us.
Have just used these clippers for the first time, so quick, easy, and safe to use. Bailey hated having his claws clipped, had to visit the vets to have them clipped not anymore. Can be done at home in half the time without the cost.
I bought these originally to use on my Guinea pigs, but they work very well on my Jack Russell too.
Very easy to use, you don't need much pressure and they cut very efficiently. Quick and easy. Which is wonderful as my doggy hates getting her claws clipped, as it stresses her out.