This listing is for TWELVE (12) of Aurora Plastics, 6 inch Radius Curve, Outside SPEED CORNERS specifically for the Thunderjet Lock Joiner style Track, but will work with most 6" curves. Bulk loose stock, with scuffs dust. Sold as Used but are actually Unused cull stock. Some variation in color of the yellow plastic from piece to piece is common and typical. Sold as is. Descriptions are very accurate; No Returns. PLEASE ASK QUESTIONS BEFORE YOU BUY IF YOU ARE UNSURE. We ship promptly professionally. We happily combine orders refund any excess s/h immediately upon shipping. We can always provide tracking. I charge $1 for expert handling/packaging, actual shipping. We ship out of the country almost daily. Please refer to our feedback, social media or time selling HO slot cars for assurances of a good honest deal. Happy motorin' thanks S'lots from Bob at Slot Car Central in SYR. We Know H.O.