Besides the insurances that were mentioned, some of us like to self insure instead. the price of items i see you sell would work good with self insurance.
what we do is everytime we sell/ship something, i put a dollar off to the side which is cheaper than most insurance you buy. if you need to reimburse someone, you just pull the money out of that pile. But if you don't need it and after you built up a good pile to cover everything you have listed plus some then you can dip in it and use it for other things. if you give it to a third party and don't use it, you lose it, not when you self insure.
Most people that have problems with self insurance cause the problem themselves by not keeping up on the habit of putting money aside on each shipment. if you keep it up, you should build up a pretty good savings.
With self insurance, you know you will never get denied but buying third party insurance you just never know for sure if you are covered or not and not find out until you make a claim. some reasons i see for claims denied are insufficient or poor packaging, filed for claim wrong, item inside package is on their list of no insurance coverage and no you cannot get your money back if it is an uninsurable item, you need to know that before you buy it. these are only some of the reasons why insurance claims might be denied and not all of them, just the ones i remember off the top of my head.
