Made of premium silicone, non-toxic, harmless, totally safe and reliable material.
Strong resistance to harsh condition like high low temperature and abrasion through year to year, the one with service life
Effectively protect the bottom of the cup and prevent wear.
Material:Silicone
Size: Inner diameter 7.0cm,Height 4.5cm,Thickness 2mm
Package Included: 1 X Silicone Bottom Cover