Potrisers (12 Pack) Invisible Pot Feet for Large Pots, Black, supports 3 to 4 large Pots or Statuary. Still the original and the best with a lifetime guarantee  beware of cheaper imitations! They prevent pot-skidding as well as staining and damage to decks and surfaces. Made in the USA and Canada from 100% recycled rubber; eco-friendly and indestructible. 3 risers support up to 9,000 pounds and most medium to large pots may only need 3 risers to achieve stability. Each Potriser is precision cut using a CNC Ultrasonic Cutting Machine with surgical sharpened Carbide blades to ensure uniformity. Potrisers come in two sizes: These are our larger risers 2"x 2"x" 3/4" ht. and are ideal for medium to large pots or statuary. If desired, Potrisers can be permanently attached to pots & statuary using a strong glue such as super glue. Potrisers are not recommended for use on vinyl or vinyl composite surfaces that are prone to be marked by other rubber products as well.