I used to razz Ken Wilson of Wilson's Hobby before he left this world about nothing in the shop for control line. He then stated, "Look at the package, it says R/C". I said yes it does, that means radio control and he corrected me in that he said it meant "REAL CONTROL". Him and his boys started with control line. When he left us they were all playing with the 1/4 scale sprint cars. Have fun, DOC Holliday