KONG Fill Or Freeze Tray filling station for KONG toysThis filling station lets you fill, cool and freeze up to 3 KONG toys at the same time. So you'll always have a KONG toy ready when it's time for a snack that sparks instinct. The specially shaped holes with silicone flaps hold the KONG toys securely, keeping them upright and easy to fill without spilling. Suitable for:KONG ClassicKONG PuppyKONG ExtremeKONG Senior