Glass Gift Mug Cup 1,high quality glass gift cup 2,borosilicate glass material 3,Oem service offered 4,trail order accept Glass Gift Mug Cup Product description: 1,high grade boroslicate glass material which is eco-friendly,heat resistant and safe for health 2,high quality,good price,good sealing and nice packing 3,filter: tea filter inside with four springs to regulate the degree or lightness 4, ...