It's a tricky endevour to try and grab a hedgehog. They have spikes and some variants are rather fast. Which is way it's easier for a hedghog ring to grab your finger instead.
Other rings you might like:
Kitty Ring:
http://shpws.me/DYuM
Moon Ring:
http://shpws.me/IELE
Braid Ring:
http://shpws.me/EZ9c
Paw Ring:
http://shpws.me/MPPH