1. stainless steel sand timer 2. 3 timing as customer need 3. 30 seconds up to 10 minute 4. size 9 x3x7.8cm 5. OEM service stainless steel sand timer, 1. Holder material: stainless steel, glass sand, PP tube2. Products weight: 135grams3. sand glass size: 9 x 3 x 7.8cm4. time: red sand  for 3 minutes, green sand for 4 minutes, yellow sand for 5 minutes5.  regular colour: Orange, red, yellow, blue and green More information: 

1.) We are the professional factory who produce the sand timer, hourglass (hour glass), sandglass (sand glass) with different frames

Metal frame sand timer Specification.

2.) The Hourglass Sand Timer is an elegant accessory for your desk.

3) The hourglass is encased in a nice chrome finished frame. Limit conversations with co-workers by timing their visits. Sand clocks are also useful during meetings for timing speakers and playing games. A nice executive gift for the office.

Feature:

1.It has two connected vertical glass bulbs allowing a regulated trickle of material from the top

to the bottom.Once the top bulb is empty,it can be inverted to being timing again.

2.Factors affecting the time include the amount of sand,the bulb size,the neck width,and the sand quality