SureTrack is designed to clip wooden train track together, including Thomas the Tank Engine, BRIO, KidKraft and most compatible wooden railway track. SureTrack's patented design snaps or slides easily onto adjoining track pieces to secure and stabilize the interlocking pieces. There are 14 pieces of SureTrack clips per box per box. Sure Track enhances play for both the child and the parent by Enabling play on uneven surfaces, including carpet, Lowering track maintenance layout can remain intact for extended periods of time without glue or nails Allowing younger children to play with fun, multilevel track designs Allowing older children to build complex designs Providing protection from jolts and bumps Expanding options for creative designs Enabling stable multilevel track designs Requiring fewer supports when building multilevel designs