TOPPL® ACCESSORY. Toppl lover’s rejoice! The perfect companion to our best-selling enrichment toy, Toppl. The Toppl Stopper is designed to keep Toppl plugged, stable and upright for filling and freezing your pups favorite snacks! Designed to fit all Toppl sizes to make meal and treat creations easier and cleaner for Toppl lovers around the world. Toppl Stopper is an accessory for Toppl but is NOT A TOY; remove before use.