Sand Timer 1,Size:90*25mm 2,TImer:1,3 and 5 minutes Sand TimerOur products have passed CE,ISO ... and ROHS certification.1,Size:90*25mm 2,TImer ... clients with good service and high quality product.2.We also supply OEM services,we can print ... We usually for our customers by sea transport.2,By air Usually by federal express transportation,DHL ...