Extra impression kit

Customer can get an impression kit for the first time only for free, this kit allows him to make 2 impressions with an extra one as spare. If the customer failed to make the needed impressions well and he needs another impression kit, then the customer has to pay for the price of the new kit which is 30 dollars.
Impression kits fees are non-refundable even if the customer cancelled the order for any reason, once the kit is used then the customer has to pay for it.