slinky Brand: AjantaExports Color: Silver Part Number: Wh-sn-60 Details: Wave from - Helix, Scientific Slinky, for demonstrating wave motion. Helical coil of flat section tempered steel wire. Coil diameter 7.5 cm, length closed 10 cm, fully extended 3 meters. This is a fun item to play with and learn at the same time. Moves down a wicked set of stairs as is usually shown in videos and experiments. A fun gift for young learners. Is made of better quality material than your average toy. Package Dimensions: 44.0 x 44.0 x 44.0 inches