A millimeter is extremely small. Normally, if you purchased a rose in a store, you would expect its stem to be about 30 centimeters or about 300 millimeters long (a foot). If you cut a rose from a plant in your garden, you would expect the stem to be at least one fourth that length.
A millimeter is 1/10 as long as a centimeter.
A speck of dust is about as long as 1 millimeter; a speck of dust can be found in all houses.
A millimeter is only 1/10 of a centimeter, 1/304.8 of a foot, 1/25.4 of an inch, 1/914.4 of a yard, and 1/1000 of a meter. A millimeter is about as small as a mustard seed.
A long stem rose would generally be 70cm or more. If you are ordering a flower arrangement and want long stem, be sure to tell them that you were wanting stems at least this long. You might have to pay more depending on where you are sending them or ordering them, but if the height is that important to you, you won't mind. Also, if you just want the height and still want long stem, don't ask for the stem length, but instead opt for tall branches (or blooming branches if they are available) and roses with a collar of lemon leaf, rather than all of the leather fern and filler. Your arrangement will make a bigger statement and also have a contemporary feel.
A typical paperclip is about 1 millimeter in length. A grain of sand is also around 1 millimeter in size. Additionally, a staple is generally close to 1 millimeter long.
A pinhead is about 1 mm across.
1 inch is 25.4 millimeters.
1 inches = 25.4 millimeters
Put the rose in your sleeve stem out Quickly pinch the stem & pull It takes practice but there are videos about it.
A mustard seed
The metric unit for 1 millimeter is meters. 1 millimeter is equal to 0.001 meters.
1 millimeter is larger than 0.1 (1/10th) millimeter.