10 pieces of the big or the small circle cost the same. Order the big one and cut it to small pieces to have more rubber repair.
Ordered on 22.11 and received on 12.01. Some of them verry verry small. 1,5.mm is quite small. It could be breathen easily by a an adult and even by a baby. Keep them away off that box. I did not tested yet. I will leave an aditional feed back after.