MATERIAL: High borosilicate glass,heat resistance.unlike the plastic tumbler, this one is good for cold drink or hot drink. No worry of BPA or plastic taste.
EASY: Removable stainless steel Strainer makes your steeping much easy.
SAFETY: withstand the repaid temprature change of the water from the 0 to 100 degree.
SOLID&LEAKPROOF: Thickened cup bottom design,and Built in leak proof silica gel sealing ring.Not easy to leak .Perfect to use in home, office or car.