... OK 2.small QTY accept Plastic 1 minute sand timer :size:9*2.5/1.8cm ,time can do 20s-3 mins ... affecting the time include the amount of sand, the bulb size, the neck width, and the sand quality.4.Suitable as ... as your wish.7. Individual handcraft, classic look, timing accurate8.size:9*2.5/1.8cm9.packing:10pcs/oppbag 1000pcs/ctn packing ...