The Growtopia Store is where you buy various items including locks, jammers, clothing packs and more.
Some items in the store, for example Nyan hat, jammer and locks can only be obtained by purchase or trade and cannot be spliced.
Everything in the store can be brought by a certain amount of gems. Items that are brought from the store and recycled will not give the same amount of gems back.
Tap the red gem on the screen or press the Menu Button then the Store button to access it.