Product Features:Removable stainless steel infuser for loose-leaf tea, herbs, citrus slicesInsulated, double-walled designLeakproof locking systemComes apart for easy cleaning?Fits ZOKU glass core bottles (355ml / 475ml)BPA FreeDesigned in the USAProduct Details:?Dimensions: 4cm(L) x 4cm(W) x 12.5cm(H)Weight: 18gMaterial: Stainless Steel, ABS, SiliconeHeat resistant temperature: 95?C ~ 5?C* The Glass Core Bottle shown on product pictures is NOT included