I have brought this pack of revision cards for my daughter who is sitting her gcse's soon.
The card is quite thick which is great because it means they are not going to rip as easy once on the ring holder.
They are nice pastel colours so she can use each colour per subject that she needs extra help with through revising and they are very smooth to write on with either pen or pencil.
My daughter absolutely loves the idea of these and its given her the incentive to actually use them.
I personally think they are great value for money and will definitely be back for more once she is sitting her A levels to help her once again.