Markers are fine, my brother travelllved from the usa to uk with 2 markers, hopers and gear. TSA american airport security, understand the sport and have no problems at all however TSA will claim that the airline have the last say and could refuse any baggage. However that's just to clear TSA from any wrong doing...you will be fine to travell by air. If your buying from the usa and shipping back, anything ove 50 usd declared the receive will have to and I say have to pay the tax!