1,Excellent pyroplasticity material trays 2,Soft,elastic,make the patients comfortable 3,20pcs/bag,25bags/ctn 4,Weight:7.2kg Teeth whitening traysItem:YT-3Excellent pyroplasticity material trays,soft,elastic,make the patients comfortable. Carton size420×330×310mmPacking20pcs/bag,25bags/ctnWeight7.2kg