This K'NEX Roller Coaster Hyperspeed Hangtime replacement part set includes 28 pieces of yellow straight and curved track. These coaster parts are made of durable plastic and are compatible with K'NEX Thrill Rides products. The bright orange color adds a fun touch to your coaster creations. Recommended for ages 8+ and with no packaging, this bulk/lot set is perfect for those who want to add more track to their existing coaster. Bring the thrill of the coaster to your home with these K'NEX Roller Coaster Replacement Parts.