Material: the wacky track is made of PP material, durable and smooth for playing, when you snap the links together, they will emit a satisfying click sound, full of fun | Size: the snap and click wacky track is about 11 inches/ 28 cm in length after spreading, suitable size for children and adults, good as gifts to your friends and kids | Colorful and random: these wacky tracks have mixed colors such as green and orange, red and blue, green and blue, they all come randomly, please make sure do not mind before purchase | Snap and click: each of the 24 links can pivot and lock into 5 positions, you can create any shapes you want, such as letters, numbers, symbols, etc..bring challenges and fun to your fingers and brain | Package include: 6 x wacky tracks, they can help children and adults reduce stress, increase focus and attention, benefit for intelligence and imagination development, great for party bag fillers and party supplies