An apparatus featuring two chemical cylinders with a panel on the back.

Chemical Cylinder Apparatus

A cylinder outline with two floating circles inside.

Cylinder With Circles

A group of many overlapping cylinder shapes or tubes of different sizes and colors, seen at an angle.

An open book displaying a diagram of an atom next to a diagram of a cylinder above the equation "(x+2)". 

A group of abstract outlined cylinder or slider shapes with some circles.

A cylinder-shaped building with a rounded top and ladder going to the top.

An icon featuring an outlined cylinder containing an image placeholder of mountains and a sun above the number 360 with the degrees symbol. 

An outlined cylinder with a circle inside.

A tilted cylinder shape seen at an angle.