Product information:

These black end caps are made of durable plastic

And built in multiple ribs for easy installation and secure fixation
Diameter: 16mm,19mm, 20mm ,22mm, 25mm, 28mm, 30mm, 32mm, 35mm
Multiple outside diameters:
1/2 inches, 3/4 inch, 1 inch, 1-1/4 inch, 1-1/2 inch, 2 inches; The multi sizes allow for wider application
Quantity:10 pieces each size, enough to meet your different demands in daily life

Color:16mm/19mm/22mm/25mm/28mm/30mm/32mm/35mm