Someone brought me this for my birthday because I got starter oval and pack A with my night mail set someone else brought me. If you want a toy that's fun, techinal, amazing and downright cool this is the perfect pack for you. It contains curved bits, straght bits, a sharp corner and a buffer stop. I am just about to buy track pack c, (Because that has the power cilp for the inner ring) with a few other things that will liven up more including my second saiton. If you have babies or toddlers don't buy this for older brothers because the under 3 year old will wreck it. (I know all about it) This is NOT a toy to be used for schooling because then you're jut kidding them and your slves!!!!!!!!!!!!!